Brap is a word used by people who fail at the English language, usual unemployed as they don't have any life skills because their parents are scumbags like them. Their brains are so small and incapable of stringing a sentence together that when they get excited they forget how to talk so just start making random noises, 'brap' happens to be one of these noises.
A good song comes on the radio;

Lowlife: Oiiiii Brap Brap Sick Tune Blud

Rest of Civilisation: Knobhead!
by PC - Professional Cynic August 19, 2011
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Breast/boob clapping
Boobs large enough that when pushed together make a clapping sound.
Simillar to the "fap" sound.
boy: "while I was doing her from behind her huge tits started brapping."

girl: "I applaud your excellent sexual deeds with this brap" *repeatedly pushes breasts together in order to make them slap against each other*
by Kryshia April 13, 2012
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now used to take the piss out of chav-speak.

or a word seriously used by chavs, at very inappropriate times.
YESS MAYTE, we are likke, WELL repectabled dat under 16s nightclub. BRAP.

P1: what did the doctor say?
P2: he said, i might not live more than a, month. BRAP.
by saltcoats. February 17, 2009
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Onomatpoeia used by schoolkids and people who wear their trousers stupidly low. Usually to imatate a gun but mostly used to say, "Yeah, good!"
"Check my new BB gun!"
"Brap!"
by Random Task June 14, 2007
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Brap- a word used to make yourself look big-ard
Used to round up sentences rap's Mc's and just to make yourself look "cool"
Goh' this Sick 'ead Mc Bruv BRAP!

Check my new Ny-Keez BRAP

I go to the the Sick 'ead Kings scool BRAP

Timbaland coming to my town-BRAP
by Alie827489123BRAP December 3, 2007
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Onomatopoeia Slang word for the sounds that Wankel Rotary engines make, particularly on the Mazda RX-7.
"Bro that RX-7 just went BRAP BRAAAP BRAAAAAAAAP"
by SillyseagullDefinesWords April 3, 2022
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this is when a certain individual whearing a TN hat becomes stimulated as they see something they want (either taking with or without consent,they will have it). it is said when becoming stimulated in any way usually.
brap brap brap,that gyal is DOPE u ghett me
by magical_trevor April 20, 2006
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