mud flap 

fairly big ass cheeks

My girlfriend has some great mud flaps.

mud flap by King Shit January 16, 2003

mud flap 

when your girlfriend sharts on ur balls while diong her missionary style

my girlfriend had burritos for lunch and gave me a mud flap during our nooner.

mud flap by lunchbox9000 August 23, 2009

mud flap 

A mullet. Short on the top, Long on the bottom.

"I wonder if that there man with the mudflap is coming to the hoe-down tonight at papa's barn?!"

mud flap by cryzz+sare December 12, 2002

mud flap 

A thin tappered piece of skin that stops the flow of fecal matter to the chode.

mud flap by Sage McAilister July 26, 2003

mud flap 

Derived from the German word müdflapenzie.

Ich bin ein müdflapenzie

mud flap by Toth October 17, 2003

mud flap 

sneeze guard for a rednecks boyfriend

if it wasn't for that mud flap he would have nudded on his back.

mud flap by B1G L0U February 3, 2008

Mud Flap 

An empty scrotum or ball sack.

Pat was born without balls but still has a sack dangling; when he's getting pounded from behind, it acts as a mud flap to keep shit from getting all over the place.

Mud Flap by M F Fuckenstuff July 1, 2016