what is rejected by the brain after it has been completely and utterly fucked
That physics class gave me a brain queef.

What the hell? That's crazy! I'm going to have a brain queef!
by Uncle Ike May 15, 2009
We all know what a brain fart is, right?

Well, then just use your imagination!
Did you see that? She just had a brain queef!
by Klaatu_347 April 26, 2007
Equlivent of a 'brain fart'
Damn, i just had a brain queef
by NOH8 May 29, 2009