When your having sex doggystyle and the girl explosive diarrheas on the man's testicles.
"Did you hear what happened to Josh? Melissa gave him a West Virginia Mud Flap"
A graphic illustration of a woman's sexual organs (often found in biology schoolbooks)
Look,i havent a clue where the clit is, lets get the flap map
It is the flappy part of a cootie.
A virgin: Omg wtf are those??
The girl: Oh it’s my cootie flaps!
The genitalia of an elderly man, or the breasts of an elderly woman.
John "Man, I heard that once you hit the age of 60, you start to develop a flap pack!"
Chris "Isn't that true!"
Sagging tits that hang below the stomach. See your grandmother for more details
My granny has some nice flap jacks
when you slap your bitch in the face with your penis.
Last night i flap jacked her in the face.