Plankton (left) and Mr. Krabs (right) playing Thursday Night Gambling in the Chum Bucket

Thursday Night Gambling is a game played by Mr. Krabs and Plankton. In the episode "Welcome to the Chum Bucket," Mr. Krabs reveals to SpongeBob that every Thursday night, he gambles with Plankton.


Whoever wins the game gets all of what they bet, but Plankton cheats to get SpongeBob's contract. He eventually lets SpongeBob go back.