Top Definition
when you are having anal sex with a girl, ejaculate in her, and then she farts it back on your face!!!
Bro 1 "So is Tara coming over tonight?"

Bro 2 " Hell no, I want nothing to do with that!"

Bro 1 "I thought you two hit it off"

Bro 2 "Everything was great at first, but then she hit me with a Butternut Bomb! I'm out!!!'
#anal #bombs #cumfarts #anka #cumfarys
by chokingrandy November 28, 2011
Free Daily Email

Type your email address below to get our free Urban Word of the Day every morning!

Emails are sent from We'll never spam you.