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4.
a blend of genders, so to say chicks with dicks...banana nut(hinting at...well that's obvious) + muffin(hinting towards having a "muff" aka vagina)
I woke up after a night of heavy drinking and asked the mistake next to me for some breakfast and she showed me her banana nut muffin.
by Elliot the Dragon December 03, 2008
 
1.
A muffin that loves bananas and nuts!
JEFF: Sarah, I'm gonna stuff your banana nut muffin!

SARAH: Yes!!!
by Sara Lee January 07, 2007
 
2.
A type of pastry that immature people find humorous because:

A: "banana" is slang for penis
B: "nut" is slang for testicle
C: "muffin" is slang for vagina
Normal Person: "Hey, would you like a piece of my banana nut muffin?"

Absolute Douche: *laughing hysterically
by Yeah, that guy November 28, 2010
 
3.
The act of stuffing her partners scrotum into her vagina while he is fucking her ass.
Hey honey, interested in a banana nut muffin tonight?

Only if you shaved your balls. Last time the stubble killed my snizz
by Manic Hispanic January 26, 2009