out the flap 

Speaking real. Straight from the mouth that’s saying it.

‘ Originated from Ghetto of Louisiana ‘

“Y’all niggas pussy af mane, out the flap”

out the flap by vNeji February 25, 2018

flapped the hell out 

When your super car is in top gear.

“How’d you loose your liceance?”
“I was flapped the hell out when I saw the rollers!”

flapped the hell out by Overloadford January 14, 2018