cock block

A cock block is when two males are moving in the same girl and the fellow with no chance prevents the second male from advancing on the girl. He cock blocked the second guy and both lose.

This scenerio involves a male "friend" of a girl who continually tries to break the friend boundry while another male moves in on the girl. When the "friend" refuses to let the new guy and the girl be alone, he is cock blocking him. In a way, he is throwing the game for both teams, since no one wins... a cock blocker!

cock block by Penguin September 6, 2003

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.

Cock Block by Xenon32 March 1, 2010

Cock Block

Someone who messes with your sex game!
Someone who stops you from getting pussy on purpose!

Man, that dude is a cock block!

Cock Block by Rick-Chizzle January 28, 2009

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.

cock block by tcady123 October 8, 2008

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.

Cock Block by LoveLoveLove27 July 7, 2010

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.

cock block by angle November 30, 2004

Lock, Stock, and Cock Block 

1.(males)When someone goes above and beyond the call of duty to do a cock block. This usually involves a second or third party to really make it extra awkward. This is, in particular just some guy trying to be a prick.
2.(females) Having to be an uber bitch just to get some guy to leave you alone.

Line at the movies. Male and female are dressed up and obviously on a date. Some dickhead is going on and on about how the girl is too pretty for the guy. He proposes to his friend that they kick the guy's ass because he's not good-looking enough for her; Lock, Stock, and Cock Block.
Girl: "Hmm."
Guy: "Can I get that number?"
Girl: "Rape!"
Lock, stock and cock block!

Lock, Stock, and Cock Block by MadamexXx March 2, 2009