SpongeBob SquarePants

Grouchy Snailitis

on ESB
Add New Page
Comments0 Share
Toy Store of Doom 062
"I can't hear you! It's too dark in here!"

This article is in need of a proper infobox. It currently uses Template:Infobox. Please help Encyclopedia SpongeBobia by changing this one. If there isn't a proper infobox template in existence, please talk to an administrator.
Please remove this message when finished.

Grouchy Snailitis
Once Bitten 23
Type: Disease
Appearance: "Once Bitten"

Grouchy snailitis is a snail disease cause by a splinter. It is only seen in the episode, "Once Bitten." It is an infliction that causes mild symptoms similar to the real life Rabies Virus caused by extreme pain. Supposedly, after Gary bit Squidward Tentacles, Grouchy Snailitis appears to mutate even further into Mad Snail Disease. A highly contagious disease which causes the same symptoms but in other sea creatures. After Gary goes on a rampage and bites several other Bikini Bottomites, he supposedly started an 'outbreak' of MSD and the 'infected' began rampaging across the Bikini Bottom.


It is a disease caused by a splinter pricking part of a snail's skin. It can be diagnosed by a S.D.E. or S.E. expert, such as Dr. Gill Gilliam. It seems that it is further caused when snails are in extreme pain. Symptoms are rabies-like, the infected snail becomes full of rage and foams out of the mouth. The veins in their eyes bulge and they react violently to touch.


It is only seen in the episode, "Once Bitten." In the episode, Gary the Snail contracts the disease, causing a rampage of him around town, biting people with a supposed "mad snail disease." It is revealed later in the episode, that Gary only has grouchy snailitis. With the hoax of MSD revealed, order returns to the Bikini Bottom.
Grouchy Snailitis

Gary's Spliter which causes Snailitis


It has only been identified in Gary. It was diagnosed by Dr. Gill Gilliam, SDE, SE. It can only infect snails and is not virally contagious.

Ad blocker interference detected!

Wikia is a free-to-use site that makes money from advertising. We have a modified experience for viewers using ad blockers

Wikia is not accessible if you’ve made further modifications. Remove the custom ad blocker rule(s) and the page will load as expected.