SpongeBob SquarePants is a popular cartoon, and has been referenced in popular culture numerous times. Several of these references are from other Nickelodeon shows and shows from another networks.
The Adventures of Jimmy Neutron: Boy Genius
In the episode Operation: Rescue Jet Fusion, Jimmy, Carl, and Sheen go into the ocean to look for a tracking device, and when they find it, a pineapple can be seen at the mid-right. A commercial stated that the pineapple was SpongeBob's house.
America's Funniest Home Videos
In one episode, a guy in a SpongeBob costume was shown running around in circles and then he falls. Tom Burgeron calls him "SpongeBob ClumsyPants."
In another episode, a SpongeBob birthday cake is seen.
One episode shows a boy picking his nose who was wearing a SpongeBob T-shirt.
In the episode "A Smith in the Hand," after Stan announced his new station Clean TV, in one scene, several kids can be seen crying to their mother with one of them saying "Where's SpongeBob?" and another saying "I want Patrick!"
In "Toy Whorey", an angry banana shaped SpongeBob toy is seen.
In "Scents and Sensei-bility", an orange SpongeBob piñata is seen.
Peter has a yellow square toy. It is very similar to when SpongeBob screams in SpongeGuard on Duty. Angelo has the same toy, but it's orange.
Aqua Teen Hunger Force
In a episode named "The Last Last One Forever And Ever," A live-action episode. Meatwad (Who is portrayed as a yoga ball) is helping Master Shake (Who is portrayed as a human named "Don Shake") write a story, and suggests writing a story about "A sponge who lives in a pineapple under the sea." Shake says "Hasn't that already been done?" and Meatwad replies "No. I don't think so."
In part one of the first season finale, Master Pakku coyly stated to one of his students, "Nice work... a couple more years and you might be ready to fight a sea sponge." The show's creators later said in the audio commentary of Siege of the North Part I that his statement was a friendly poke at SpongeBob SquarePants.
The Big Bang Theory
In the episode, "The Justice League Recombination", Sack says that a starfish came back to life, to which Sheldon replies, "Was it wearing shorts? Because it was probably Nickelodeon.", a reference to Patrick Star and the shorts he wears.
In the episode, "The Word", Jack says The N Word, which gets him expelled. When Diane asks "How Was Home", Jack Replies "SpongeBob was Great."
The Cleveland Show
Early in the episode "Buried Pleasure," Cleveland has holding a banana-shaped stuffed toy that looked like SpongeBob.
In another episode, Holt mentions SpongeBob.
The Creative Pet Grooming Show 2013
When a woman walks into a room, the SpongeBob theme can be heard.
The Daily Show
In the May 2, 2011 episode, Jon Stewart jokes that Osama bin Laden now "lives in a pineapple under the sea", showing a picture of him sitting on Conch Street.
In the April 23, 2015 episode, Jon Stewart says "Dear God, SpongeBob, what have they done to you?" upon seeing the NSA's recycling mascot.
In the May 28, 2015 episode, the "lives in a pineapple under a sea" quote is used again, this time to refer to Bernie Sanders.
In "The Vampires of Venice," Rory insults an alien species called the Saturnyn, and uses the word SpongeBob.
Wooldoor Sockbat is a parody of SpongeBob, spoofed also with Stimpy (from The Ren & Stimpy Show) and the Looney Tunes characters, also he has theme music similar to SpongeBob's.
In the DVD version of the episode "Captain Girl," between Toot jumping through the water and Toot inside it, the narrator says "Three weeks later," then it shows the island of SpongeBob, with the Drawn Together house between the palm trees.
In "Unrestrainable Trainable", a newspaper describes Wooldoor as a "poorly conceived SpongeBob parody."
In "Finns of War," a sea sponge who looks like SpongeBob is seen.
SpongeBob SquarePants was mentioned multiple times in their sPOGIfy feat. Singing Baes segment.
In one episode, Alden Richards mentions "Mga baes, tandaan, 'wag kayong magkanta parang si SpongeBob." (Baes, remember, don't sing like SpongeBob.)
In another, it is mentioned "Huy! Ba't mukhang Squidward? Ngiti! Hahaha!" (Hey! Why do you look like Squidward? Smile! Hahaha!)
In their Juan For All, All For Juan: Bayanihan of da Pipol segment, in their October 16, 2014 episode, they visited a house with a SpongeBob backpack.
In "Wish Fixers," Timmy wishes to have running pants made of cheese, and then Cosmo calls Timmy "CheeseBoy SquarePants."
Another reference can be found in the episode, "Something's Fishy," where the king of Atlantis, Greg, states that the diets of the merpeople consist of "crabs, starfish, and the occasional underwater squirrel", as a joke to their fellow Nick animators.
Another reference can be found in the episode "App Trap" where the first kid with the smart phone has SpongeBob's pants, buck teeth, eyes, hair and freckles.
SpongeBob SquarePants has been referenced numerous times:
In "Prick Up Your Ears", Stewie is seen playing with a green SpongeBob toy.
In "Road to the North Pole", Stewie asks Brian if SpongeBob and Elmo were real and asked if SpongeBob really gives Squidward the business.
In "Turkey Guys", a balloon of a SpongeBob parody called "SpongeCow" is seen during a Thanksgiving parade.
Fanboy and Chum Chum
In the episode, "Cold War", Kyle gets chased by Fanboy and Chum Chum clones in a similar way to the robot chasing the man in the episode "Krab Borg." Yet, the episode has a similar plot to "Naughty Nautical Neighbors", and when Kyle enters the Fanlair, it's similar to how Squidward enters SpongeBob's house in "Pineapple Fever."
The episode "Excuse Me" has a somewhat similar plot to "Ditchin'."
In "I, Fanbot", after Fanboy as a robot causes everyone to fail the test, all the students come charging for him, and he flies out of the angry mob only to land back in it seconds later. The same exact thing happens to SpongeBob in "Bubble Buddy."
Chum Chum's pirate name in "Fanboy A'hoy!" is "Chumbucket", which shares the name of Plankton's restaurant.
In the episode "Caught in the Act", Martin refers to Nanny G as SpongeBob Hotpants.
"Celebrities Without Their Makeup"- SpongeBob, dressed like an elf, is a fruitcake without his makeup.
"¡AY Carly!" - A Mexican version of SpongeBob is shown.
"Law & Ogre" - A framed picture of SpongeBob is seen.
"Pirates of the Pair of Tweens" - Plankton goes "planking" with Captain Jack Sparrow on the "Crabby Crust."
"SpongeWOW" - SpongeBob is used as a ShamWOW towel.
"Abs-Duction" - Actor Taylor Lautner goes to Mr. Krabs' house, thinking he is his real father. Mr. Krabs responds by slamming the door at him, angrily.
"New Gill" - SpongeBob dates Ariel and laughs at her.
"IChronicle" - SpongeBob and Patrick can be seen on a Nickelodeon blimp.
"Fart or Chair" - SpongeBob can be seen sitting on a massage chair.
"The Blunder Games" - A SpongeBob balloon is seen at a parade (in a parody of the 2012 film The Hunger Games).
"Taking Nemo" - SpongeBob is asked if he has seen Nemo (from Disney/Pixar's film Finding Nemo).
"Dark Knight at the Museum" - SpongeBob is shown shouting "I'M READY!"
"SpongeBorg SquarePants" - In this sketch, SpongeBob is a cyborg.
Marvin's host father was bitten by an alien, and started hallucinating, he then held up an umbrella and said "Here's your clarinet Squidward."
SpongeBob is mentioned two times in Millie Inbetween, once mentioned and SpongeBob, Patrick and Mr. Krabs are shown on different pictures in a scene.
Mickey Mouse (2013)
In the episode "Road Hogs," Mickey's scooter topple over a row of motorcycles from a gang of pig bikers similar to how SpongeBob knocks over a row of fish bikers' motorcycle from "A Life in a Day." Ironically, all of the pig bikers are voiced by Clancy Brown, Mr. Krabs' voice actor.
My Little Pony: Friendship is Magic
In the episode "Party of One", when Pinkie Pie gets in the hay, she is similar to SpongeBob.
Ned's Declassified School Survival Guide
In the episode "Photo Day", one of the kids wears a SpongeBob costume for their school photo.
Not Going Out
In an episode of Not Going Out, Tim mentions SpongeBob SquarePants.
In "Casino", Oggy is seen hiding in the mailbox and pops out to receive his mail (Jack does the same thing later), which is similar to how SpongeBob scares the mailman in the episode "Chocolate with Nuts."
In the pilot episode there is a cameo of an identical character to SpongeBob appearing at a nightclub between the characters. The character even makes it clear that is not SpongeBob, but a cheese while chatting with a female bread.
The episode "Oh, There You Are Perry", is similar in many ways to "Have You Seen This Snail?" For example both owners put fliers up all over town after they realize their pet ran away. The boys also sing a song similar to Gary Come Home.
Pretty Little Liars
In one episode, when Hanna is talking to Mona, she mentions SpongeBob & Patrick.
In That Hurts Me, a sponge and a starfish dance with each other, barf, and then dance with each other again. The characters in this sketch resemble SpongeBob and Patrick.
In Tell My Mom, Sandy gets pregnant and SpongeBob realizes she used him to protect her.
In Major League of Extraordinary Gentlemen, SpongeBob discovers Mr. Krabs' secret formula. Krabby Patties are made from crabs, he also points out to Squidward that the calamari rings he is eating are actually made from squid.
Sam and Cat
In the episode #TextingCompetition, when Cat was mentioning what she could do with the speed boat, she said "Number 3, look for SpongeBob's pineapple!"
See Dad Run
Janie mentions being famous like SpongeBob SquarePants and David says you can't be famous just by popping out of a pineapple.
An episode spoofed SpongeBob as "TriangleBob TrianglePants" which was Telly Monster's favorite show. The show starred a triangle man version of SpongeBob.
In "She Used to Be My Girl", Lisa, needing a god to pray to, tells a newscaster she is praying to Jesus, Buddha, and SpongeBob. Then the camera shows heaven, where Jesus, Buddha, and crudely drawn SpongeBob are. Buddha asks Jesus, "Perhaps we should help?" and SpongeBob interrupts, saying "Screw her!", then laughs insanely, while Jesus shakes his head.
In "The Wife Aquatic", Marge and Lisa go to an aquatic museum where there is an exhibit that reads "The Science of SpongeBob" and it shows a SpongeBob statue next to it. Patrick Star also appears as one of the mollusk photos.
In The Simpsons Movie, SpongeBob can be spotted in the angry mob that wanted to kill Homer for trapping them in the dome.
In "Treehouse of Horror XX", a Frankenstein's monster was dressed in a SpongeBob costume. Later, SpongeBob told the Simpsons he was secretly very evil.
In "Angry Dad: The Movie", Bart mentions SpongeBob when he claims he likes cartoons. He says: "I've always loved cartoons, going way back to the real early SpongeBobs."
In "Yellow Subterfuge", When Krusty asks to Lisa if could sell foreign rights to your show, Lisa says that even SpongeBob did it. She shows him an Italian parodied version of SpongeBob SquarePants on her tablet called Spugna Roberto Quadrati Pantaloni ("Sponge Roberto Square Pants"). In the show, Spugna Roberto (a parody of SpongeBob SquarePants) gives a gift to Squiduardo Calamari (a parody of Squidward Tentacles) for his birthday and says that the gift is a mine from World War II. Then, a seahorse presses the button which makes that the mine explodes and kills Spugna Roberto & Squiduardo in pieces. Then, a fish appears and says: "Calamari?", screams: "No...!" and starts crying. In the parody, Roberto lived in a watermelon under the sea. Actually, SpongeBob lives in a pineapple also under the sea in the original TV animated series from the real world.
In one episode, SpongeBob appears only he was green instead of yellow.
In another episode, SpongeBob was seen in the background several times.
In the episode "Driving New Business", Brett and Wayde went to a aquarium featuring Bikini Bottom.
Teen Titans Go!
In the episode "Staring at the Future", the Teen Titans saying responsibility is similar to SpongeBob saying imagination. Later in the episode when Beast Boy and Cyborg become tramutized, responsiblity echoes similarly to the Alone echo from SB-129.
An episode of The X Presidents (from "TV Funhouse" on Saturday Night Live) depicts SpongeBob refusing to star in a pro-Gulf War II propaganda commercial, and getting held prisoner for it. Tom Kenny provides SpongeBob's voice, which is surprising as this clip has relatively adult content.