MuddFlappin’ 

When one shits (the mud) and claps/shakes their ass at the same time (the flapping).

Uh oh… Jeff was the first one to fall asleep at the sleepover. Guess we’re going muddflappin’ boys! Hahahahaha, he’s gonna be so mad when he wakes up with poop all over himself!

MuddFlappin’ by Sheriff_Schlong November 21, 2023

mudflapping 

Motorboating (or flapjacking) a girls ass after she poops!

I had to hose down after mudflapping that fat girls ass last night!

mudflapping by jjstl April 27, 2010

Mudflappin' 

When someone claims they can do something they cannot do.

That nigga always be mudflappin'. He ain't even much do all dat!

Mudflappin' by GoEz August 6, 2018

Mudflapping 

the act of motor boating your girlfriends behind.

man i totally want to be mudflapping our waitress right now

Mudflapping by mm14 November 13, 2011

Mudflappin' 

The act of a female "going commando." It can get pretty messy down there, so it is up to the labium majora and labium minora to flap around freely and fight off any kind of dirt or grime.

Jon: "Hey Sally, wanna do the dirty?"

Sally: (removes pants) "What kind of dirty?"

Jon: "Eww God. It looks like you rubbed oatmeal all over your vagina!"

Sally: "I wouldn't doubt it... I have been mudflappin' all week"

Jon: "Now I see why they call it the dirty, baby."

Mudflappin' by Tough Tucca November 15, 2011

Mudflapping 

The unpleasant occurrence when one's excrement leaves the anus at such a trajectory and with such a velocity such that it gets friendly with rear part of the scrotum and or testicles

Aw man, I hate it when my dung is mudflapping all over my baby makers!

Mudflapping by FapToDaMudFlap July 8, 2012

mudflapping 

Female version of tea bagging. The act of a woman placing the lips of her vagina in her partners mouth.

She really loved mudflapping as foreplay.

mudflapping by dolander November 1, 2013