1 definition by Ernie on Crack

That's bananas

Saying something is crazy, ridiculous, or just plain balderdash.

Dee: It's my brother's fault, though. You're not going to believe this. He tried to convince me that you were retarded, what?
Lil' Kev: No, what.
Dee: I know.
Lil' Kev: That's bananas, girl.
Dee: You're not retarded, are you?

by Ernie on Crack August 22, 2009