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21.
Bits of ugly fat hanging over the top of hipster jeans when someone squeezes into a size too small.
Most visible from behind, the unsighly bulges can be spotted in almost any pub or night club in the UK on a Friday or Saturday night, and sightings have been reported during the daytime too.
The hipster jeans are usually accompanied by a tight t-shirt which rides up to the narrower part of the body due to the width of the plaps, making them more obvious. The t-shirt may also be a size too small, although this is not always the case.
"I have to keep pulling my t-shirt down to cover my plaps."
by psuedonym April 15, 2005
 
1.
a big backside; junk in da trunk
yo, j'lo got mad plaps.
by cbizzle October 13, 2004
 
2.
P) Pronunciation Key (p-LAP) v. The act of killing in a virtual sense. "To plap", "Johnny was plapped", "I'll plap you", or the more common "Plap?". Often used in a derogatory sense, n|Soul is no good at it.
plap?
by Christos October 23, 2003
 
3.
Is a Swedish word and is short for Pung-Längre-Än-Penis witch in English means Scrotum-Longer-Then-Penis.
It was cold outside so my penis shrank and i got PLÄP.
by nissenice September 03, 2010
 
4.
The sound that a slice of baloney makes when it's thrown at a person.
When they threw the slice of baloney at the naked woman, it made a sound like "plap".
by er_uh_ September 05, 2013
 
5.
A slap to the face using the pennis, done in either a playful manner or as a prank on a sleeping or inebriated friend.

The contraction of Pennis and Slap, derrived from the french Biffle.

past participle: Plapped
1.
She said it wasn't very big so I gave her a plap.

2.
Girl: whats a plap?
Man: Here I'll show you.
PLAP
man: you've been plapped
by Mr.J. Bravo January 11, 2011
 
6.
To have sex with; to fuck.
Me: Bro, are you about to go plap your girl?
Bro: Yeah we plap every night.
by Waka Flocka BOW BOW BOW May 01, 2011
 
7.
Verb. to plap.
The act of falling in a hilarious manner, usually involving mud or faeces. The object can fall onto their elbows, knees, or even their entire body.
Abi plapped in the mud onto her elbows, and has not lived it down since.
by cobbyfan April 08, 2011