Mud Flap 

During missionary position-sex with a woman, she farts on your balls.

I was having wicked sex with my girlfriend when she gave me a mud flap.

Mud Flap by Cadillac Williams February 5, 2005

mud flap 

a racial slur for a really dark african american

that mud flap stole my bike!

mud flap by m c w November 1, 2006

Mud Flap  

Where a fat guy doesnt have a stomach hanging in front of him like a beer belly or a keg its a big piece of skin hanging down to his waist or his knee's. Like the flaps on the back of the truck

You anda friend see a guy who streaches and lifts his shirt and all you see is skin not even shaped hanging down.

Your Friends says "Ew he doesnt even have a keg"
You say "No joke it looks like a Mud Flap hanging down like the back of a truck.

Mud Flap by Michaelann Dach December 22, 2008

mud flap 

Another word for tortilla. Mostly of the flour variety.

Pass me one of those "mud flaps" karen.

mud flap by B*rad August 13, 2007

mud flap 

When a male puts his nut sack over a female's nose and mouth while she is sleeping and snoring, thus creating a mud flap effect, as that of a mud flap blowing in the wind against a tire.

I give my girlfriend a mud flap every night.

mud flap by funked yo motha November 29, 2010

mud flap 

uncircumsized, the foreskin can be used as a protective barrier during a buggering session

no condom needed here, i already have a mud flap!

mud flap by stueyscott July 3, 2005

mud flap 

The huge folds of skin near a fat girl's vagina.

I couldn't find her clit b/c of her huge mud flaps.

mud flap by digoldong December 19, 2007