Mud flap

The male scrotum (balls); What men use to keep mud (shit) off of ones penis while dropping a wicked doo-doo bomb.

Man, I had some wicked diarrhea last night; I'd have doo-doo all over dick, if it weren't for my mud flap!

by billy_banana May 23, 2010

Flap Jack

When a man slaps his ball sack against his leg to make a snapping noise.

Dude I just had the loudest flap jack; it sounded like a fucking gunshot!

by GANGSTASS December 13, 2009

Flaherty

Someone who thinks indie rock is way cool until someone else listens to it.

Dude, the kid listens to The Decembrists now, he's such a poser.

Chill out, you're such a Flaherty...

by Krunk Master Flex November 5, 2005

Flapdoodle

Nonsense; To act stupid,idiotic, Nonsensical

He's Acting like a flapdoodle by jumping off the bridge

by Brett January 28, 2005

ass flap

A piece of cloth (usually a dark color, most likely black) with a logo or picture of a band on it that hangs over a "punk" persons ass, therefore supposedly showing their undying gratitude for the band. Can also be worn over frontal region, in which it is called a "cock flap", even on females.

1Dude, look at that wannabe punk rocker! He's wearing an ass flap!
2Yeah, and a cock flap too!
1What a tard.

by BentBackTulips January 2, 2009

beef flap

the dangling lips of a massive meat hole that hang down like a turkey gobbler, often seen after the ham wallet has been thoroughly demolished

After I maxed that bitch last night, i sliced off some tender-ass beef flap for us to throw on the Weber tomorrow.

by Matt kaufman December 8, 2006

Flap Jack Surprise

When one takes his/her soiled underwear and then precedes to take their underwear off, facing the soiled portion towards the other persons chest and slapping it on their chest.

"Did you hear about Sally getting a Flap Jack Surprise the other night from Tom?"

by Awesome Pants March 28, 2007