The crusty film that forms made of sweat that collects under a breast, usually a large breasted girl, or woman.. or anyone who has breasts large or saggy enough to cause and form pockets, if its large enough to hide items, its large enough to collect dirt sweat lint and small creatures. Liken it to swamp ass or belly button lint..
Dude, she flashed us and under flap fell out.
Much to his surprise and horror when he got done licking there, there was some under flap stuck in his teeth
Much to his surprise and horror when he got done licking there, there was some under flap stuck in his teeth
by SLAA addict July 10, 2012
by Flap Sack April 23, 2021
A Shart Flap is a piece of absorbent material, like bamboo cloth, sewn into the back of Commando brand shorts to prevent visibility of any shart aftermath.
Thank God my Commando shorts had a shart flap or people could see my Taco Bell accident that snuck up on me.
by Commando Shorts November 6, 2022
by Flapping Dingo February 6, 2021
by Kweenweis January 22, 2018
When you go down on a lass, spread her legs to open the heavenly gates, as you go down on her you do a loud burp right between the flaps. ( excessive amounts of either alcohol or gas-inducing drinks help with vibrations)
(Dan) Do you remember that 'Shiela' from the bar last night Shane?
(Shane) yeah the one with the fat arse?
(Dan) yeah mate that's the one, well I took her home and after all that beer.......I had to give her the good ol' flap burp!
(Shane) yeah the one with the fat arse?
(Dan) yeah mate that's the one, well I took her home and after all that beer.......I had to give her the good ol' flap burp!
by Hippybeardo September 29, 2023
When your mouth overides your ass. Talking way way to much about nothing. Not being able to stop talking.
Dude: that guy won't shut the fuck up!
Girl: yeah nigga, he's got a bad case of flapping yap syndrome.
Girl: yeah nigga, he's got a bad case of flapping yap syndrome.
by Nick"o"letty November 5, 2022