Mississippi Mud Flap 

When a man cums on a woman's asshole and lets it dry, thus creating a covering over her hole resulting in a "flap" of dried seminal fluid the next time she takes a shit.

Hey bro, I gave my girl a Mississippi Mud Flap last night, that shit was savage 😂

Mississippi Mud Flap by The Hard-on Boys January 29, 2018

Mississippi Mud Flap 

When you have high pressure diarrhea, and your balls shield your dick from the ass mud.. Thus preventing a unpleasant cleanup.

Fred wasn’t feeling good from too much spicy food, luckily he had his Mississippi mud flap

Mississippi Mud Flap by Thor2021 January 20, 2022

Mississipi Mudslap 

While induring intercourse, bend over your partner and place your anus above his/her mouth and let out a load apon there mouth cavity, then the a Male dip's there testicals in the soiled mouth, thus getting the nuts wet with runny pooh and stamping it along the backside of the opposing partner.

Man, last night was so fun, Lisa let me Mississipi MudSlap her til' she looked like a cheetah.

Mississipi Mudslap by Pmiester & T-ray June 22, 2011