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

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

Mud-flapping 

the process of getting shit on your shirt while wiping your ass

I had to change my shirt because my last one got caught in a mud-flapping accident.

Mud-flapping by myrtle1994 April 22, 2020

Mud Flapping 

Turning on the bidet as you begin to defecate, as apposed to afterwards.

Yo! I accidentally turned on the bidet too early. Guess Im going Mud Flapping

Mud Flapping by Gary Inc. December 22, 2020

Mud Flapping 

the act of wiping ones arse in the direction of the moot, hence covering the flaps in poo.

similar to mud bagging (masculine)

friend: hey jenny, whats that smell?

mud flapper: sorry, i just did some heavy mud flapping

friend: mmm, delightful...

Mud Flapping by Dick Champ May 24, 2011

Mud Flapping 

Mud Flapping is when a guy challenges or questions another guy’s manhood based on the former not being capable of a feat that he himself has just proved himself unable to accomplish

Example:

MudFlapper: “Hey bro, you got a knife I could borrow?”
RealMan: “Sorry bro, I don’t have it on me.”
MF: “What?! A real man always carries a knife!”
RM: “YOU don’t have a knife idiot. Stop all your mud flapping and get out off my property.

Mud Flapping by anonymous September 14, 2020

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