When a man gets so old that when he lays on his back his balls cover his ass hole
"Dude I woke up last night laying on my back when I farted so hard my fart flaps landed on my stomach, they are suppose to be snug under my dick"
A person searching for vaginas on a regular basis.
Dave - you are such a Flap Hound!
Confidence and strength
Grow some flaps and stand up to them!
After a woman creams her genitals may be called snow flaps.
Those pussy lips so good i came and they turned into snow flaps.
A certain individual that enjoys taking big loads and being involved in activities such as, gang bangs, being spit roasted, and the russian flash bang.
Wow look at that Wide Flap Saz over there, she’d be up for anything filthy
When someone slaps your arm twice (one with each hand) and then proceeds to snail (slide their hand under your arm) your arm, and then say double flap snail
Woah, that was one good double flap snail. ~S. Brown
When a man, typically an older man, has quite a saggy scrotum such that when they lay on their back and remove any under panties the scrotum will block the gooch area, thus creating a gooch flap.
Doctor: Time for your prostate exam. Oh my where is your anus?!?! Just kidding I found it, it was hiding right behind your gooch flap!!