similar to a cock block; a 'girl' friend stepping in to run off the ugly girl your stuck talking to; More likely to happen at a club/bar
Girl: 'Man, that girl wouldn't step off, and she was ugly!'Friend: "Thanks for twat blocking"Girl: "'yeah, anytime'BOTH: (continue drinking excessively)
by tellulah January 31, 2008
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when a woman cock blocks another woman. TWAT BLOCK.
GIRL - HEY WANT TO GO TO MY HOUSE TONIGHT?
BOY- SURE WANNA GO WRITE NOW?
GIRLS FRIEND- SORRY WE GOT TO GO WALK MY DOG.
BOY- OK THEN BYE.

TWAT BLOCK
by TRIXSTER45 December 7, 2010
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To do a female friend a favor by keeping her from getting it on with some unworthy male. The noblest thing to do for a friend.
My friend has gotten involved with an absolute pig! He's such a man-whore that the only right thing to do is to twat block her so she doesn't get some disease.
by Stop the pendulum December 24, 2005
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When your mentally retarded friend from Alabama keeps you from riding the bologna pony in the back of some dude's ride
Like when Forrest interrupted Jenny's sexcapade in the movie Forrest Gump.

Theo: "Have you seen Forrest Gump, that kid had a hell of a life!"

Juan: "That movie sucked, dude was always screwing up shit, like when he Alabama twat blocked Jenny when she was in that car"
by the wopfather May 15, 2008
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Did you get lucky last night No some dumb chick was twat blocking all night long.
by (Inhalethroughnose) September 22, 2019
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Twat blocked: is when a man is prevented from having sexual intercourse with a woman due to interuptions, jealousy, etc. (Cock blocked is when a woman is prevented from having sexual intercourse with a man due to interuptions,jealousy, etc.)
I was about to fuck amanda when her fucking sister twat blocked me!
by Samaanthaa2017 January 21, 2018
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