Slimu

Slimu is a performing octopus at Wet 'N' Wacky World in Springfield.

History
Slimu doesn't seem all that happy and healthy, due to having been forced into a performing lifestyle. The Simpsons saw him in action in a show at the marine park. Slimu has either escaped from the park or been allowed to roam freely around Springfield, as he was later seen in the city's storm drains.

Behind the Laughter
Slimu's name is an obvious pun on, a famous performing orca at.