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Ass Flapunknown
A hole located in the backside of the boxers of an individual who puts his/her boxers on backwards
*group enters hot tub*

Friend 1: "Look at this clown! He put his boxers on backwards!"
Friend 2: "Would'ya look at that! I've got an ass flap!"
#assflap][boxers][ass][flap][fail
by OTJdog March 26, 2017
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Ass flapunknown
When a rogue bit of toilet roll gets stuck to your sphincter during wiping.
It was a textbook turd until I snagged an ass flap.
#shit#bog roll#turd#poo#stinky
by TedZeppelin March 02, 2007
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assflapunknown
an extraneous piece of skin or webbing that covers the anus
Before we had the sex, I had to lift up her assflap.
by Gooney Goo Goo April 09, 2003
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assflapunknown
the slit in the seat of a pair of longjohns or union suit
"john forgot ta open the assflap and shat all oner hiz longjohns"
by hemp March 11, 2005
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Ass flapunknown
1. the small growth of skin that occassionally covers the anus of newborn children. Such growth is customarily removed and discarded. 2. someone who is disgustingly useless.
"Get off the couch and take out the garbage you ass flap!"
#assflap#ass-flap#useless#industrious#useful
by 1911a1 July 06, 2006
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Ass-flapunknown
A tag of skin on the anus sometimes left behind by a resolved ass-grape.
Her ass-flap was a sign that she was predisposed to ass-grapes, but I sodomized her anyway.
#ass-flap#ass flap#assflap#arse#arseflap#arse-flap#bumflap#bum#bum-flap#butt-flap#butt#buttflap#assgrape#ass-grape#grape#arsegrape#arse-grape#asshole#arsehole#ass-hole#arse-hole#rhoids#hemorrhoids#roids#piles#haemorrhoids#hemms#hemmies#hemmy#hemroids#hemoroids#haemorrhoid#hemorrhoid#hemoroid#hemroid
by UberCyberBeast July 10, 2008
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ass flapsex
butt opening on onesie commonly used for easy access
I like to get frisky in my PJ’s so the ass flap is very convenient.
by sluttya$$tay December 31, 2017
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