Any object, person, or idea that has the acute ability to discourage sex.
I was SO for it, but she said she was saving herself for Jesus. Shit, religion can be a cock block.
by King Oyster Smash December 31, 2011
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An application that chat roulette needs to add that literally blocks cocks from the screen. This would entail a cock-identifying application that would need to work better than facebook's face recognition feature. It would also cut down on 90% of chat roulette users.
He was going to flash people on chat roulette, but the new application cock blocked him. He's gone back to flashing girls at parties.
by Architect of Destruction November 23, 2010
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An all male dorimtory hall in college
by Anonymous November 5, 2003
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tha fat ugly bitch that every group of fine ladies comes equipped with. she blocks all cock, unless she gets some too
man1: Yo it's your turn to keep the cock block occ upied son.
man2: Werd take one for the team.
man3: FUCK.
by borita August 10, 2003
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- third party that keeps you from engaging in sexual activities with that special someone in a given amt. of time.
I can't believe her. She could obviously tell we wanted to do stuff. She's such a cock block.
by Poseur December 4, 2005
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1)Any person or group of persons interfering with an attempt someone is making to have sex with someone else.
2)The City of Pittsburgh.
3)That twitchy guy who just ruined the mood.
Joe, John, and Harold tried to cock block Steve, but it didn't work.
by Hung Lo May 2, 2003
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Fleda Definition: When Someone Or Something Interferes With Your Game. There Are Three Levels To Cock Blocking

Level 1 Cock Block- When Someone Interferes With Your Game

Level 2 Cock Block- When You Intefere With Your Own Game

Level 3 Cock Block- When Your Shit Gets Chopped Off... Thrown In The Air... Shot Down... And Then A-Town Stomped On (Figuratively Speaking)
Ex. Level 1- Me And My Girl Were About To Fuck Until Drew Walked in and cock blocked us.

Ex. Level 2- Me And My Girl Were About To Fuck But I Went Limp and cock blocked myself

Ex. Level 3- Me And My Girl Were Fucking And I Was About To Cum, But my Friend Came In and I Shot Him... Damn Level 3... The Ulitimate Cock Block
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