Can anyone name this SpongeBob Squarepants Character?

[tossi]

Finally! The day has come! Go Spongebob! Go Spongebob!

 

[thetrooper]

WTH is this Spongebob character anyway?

 

[Chukchi Husky]

He lives in a pineapple under the sea.

 

[Leonel]

Absorbant and yellow and porous is he.

 

[Abaddon]

not forgetting his square shape Leonel!

 

[Xanikk999]

But Tinky Winky doesn't have anything on Bert and Ernie. Yeah..."roommates".

They arent just roommates they sleep in the same bed.