Cock Block

Someone who either intentionally or unintentionally prevents two people from having any kind of intimate contact. Usually done out of jealousy or because of poor perception of social cues.

Methods of cock blocking can include calling one or the other person's cellphone, not leaving them alone, carrying on a pointless conversation, or saying unflattering things about one or both of them.
Did you see Dave and Ashley at the party last night? Joey was being a total cock block to them. He wouldn't let them do anything together.
by Xenon32 March 01, 2010
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Cock Block

Someone who messes with your sex game!
Someone who stops you from getting pussy on purpose!
by Rick-Chizzle January 29, 2009
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cock block

When someone or something gets in the way of or messes up intentions of performing sexual acts involving your cock.

(From Super Bad)
Me: I was so close, but he totally just cock blocked me.
by tcady123 August 13, 2008
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Cock Block

When you're about to score but someone ruins it for you.
Can be ruined for one or both parties.
Mood killer.
Best described with an example.
Haley and her boyfriend Andrew were having phone sex when Andrew's brother James walked in.

Andrew: Then I'll take off your shirt and your bra and bite your neck and pull your hair
Haley: I'll take off your shirt and your pants and get on top of you and start biting your neck softly
Andrew: Then I'll move down to your stomach and take your panties off and I'll start to eat out your pussy

Haley: Next I'll take your boxers off and kiss your dick, I'll get on my knees and start sucking your cock
Andrew: Mmmmmm, Baby, what's next?
Haley: I think that's up to you;)
Andrew: I want you to suck me until I'm rock hard and about to explode. Then I'll get on top of you and pin you to the bed and start to put rock hard cock in your tight, wet....
James: Hey man, what's up?
Andrew: You fucking cock block!!!
James: Who are you talking to?
Andrew: Haley!!! We were having a good time!!
Haley: Tell you're brother he fucking ruined it!!!
James: YOU'RE WELCOME
Andrew: Get out James!!! Baby, I'm not horny anymore. I'm sorry my brother's a fucking cock block.
Haley: Ugh, neither am I. Tell him that I'm fucking pissed at him.
by LoveLoveLove27 July 06, 2010
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cock block

a friend (usually male) that will not allow one, to sex up someone else (usually female)
Man, why did that asshole cock block me last night, she was so drunk I was gonna get some.
by angle December 01, 2004
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cock block

preventing a hot chick from hooking up with a man on a one night stand by making an ass of yourself
a job usually taken by she-beasts and grenades
by Da Nastee One May 07, 2004
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Cock Block

A person(little sibling, parent, etc.) that prevents intercourse or oral sex from occuring.
"Dude, I would've gotten a blowjob from Linda, but my little sister wouldn't go downstairs, what a cock block!"
by Herbert Baldwin February 06, 2009
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