mudflap 

A mudflap is something that hangs underneath but directly behind the wheels of any land vechicle. Mudflaps are used so that mud doesn't fling up while the wheels are spinning in rocks, dirt and of course, mud.

1. Mud flaps are great additions to all-terrain vehicles.

2. People at Urban-Dictionary don't know the meaning of "Mudflap".

mudflap by impactforums December 18, 2005

mudflap 

The result of way too much anal sex - the anus is so stretched out that when it returns to its 'not being penetrated' state, the extra skin forms a flap over the anus.

Since anal is so huge in porn, most pornstars have mudflaps.

mudflap by Stegosaurus Rex July 4, 2005

Mudflap 

When you go to wipe your ass and your shirt accidentally gets in between the toilet paper and the poop

I had to cancel my meeting and head home because I mudflapped myself in the stall at work

Mudflap by Debo20 June 30, 2021

mudflap 

the foreskin of a gay man.

hey bill, what do you call a gay mans foreskin?

i dunno.

a mudflap!

mudflap by g.n.b.rad September 19, 2010

mudflap 

The skin that appears to be roast beef. Extending from the womans outer vaginal lips.
AKA: Meat curtains

I pulled down her pants to expose her mudflaps.

mudflap by Sea1Bass2 October 5, 2006

Mudflap 

Only pertains to fatasses; when the amount of flab you have overhangs enough to interfere with going to the bathroom and thus makes contact with urine or shit making the flab act like a mudflap behind a truck tire.

EG: Damn thats a big bitch, her mudflap is bouncing off her knees when she walks!

Mudflap by tehleet- February 9, 2010

Mudflap 

What you call a gay mans sack

Frank was so into it last night he was mudflapin like crazy

Mudflap by COOREY August 7, 2007