cock-blocker

A male in a group of female friends who's job is to stop other males trying to score with the females in the group. Done purposely because the girls either already have a boyfriend or just don't want to be annoyed that night.

The cock-blocker can be either a male friend, or someone hired (almost like a bodyguard).

Popular methods of the cock-blocker include:
* Switching places with the female.
* Grinding with the offending male.
* Kissing the female to let the male know she is unavailable.
* Jumping in between the male and the female.
* Shoving the male, or squaring up to him.
* Warning him off with gestures.
John became the designated cock-blocker for the night after Mandy decided to go out with the girls and didn't want to be pestered by guys.
by Cock-Block-Pro March 29, 2009
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cock blocker

a bitch ass, usually a friend, who keeps u from gettin wit a girl either cuz hes: stupid, jealous or both
Me: hey look at stephan and jazmine over there.
Edward: yeah u think theyre gonna hook up?
Me: yeah man it looks that... oh wait theres Tim heading for them
Edward: What should we do??
Me: Lets try to get to Tim before he gets to stephan! Oh man its too late
Edward: What a cock blocker
Me: yup. Moment of silence for our fallen brother.
by sharks_pwn February 28, 2008
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cock-blocker

A female (usually unattractive, or socially "defective") that stays with her more attractive friend at a party and "looks after" her friend, or just sometimes gets in the way of her friend socially. Often times a young (not necessarily) male would be after the friend.
Male #1: D'you see Jenny las nigh'?
Male #2: Yea, D'you see tha cock-blocker she was with?
by Jupiter, an don forgetit October 12, 2005
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cock-blocker

A person who is a hater and/or jealous and blocks, distracts, gets in the way of a person about to get lucky so that the act never happens. A person who ruins a good thing for another person. A distraction someone uses to gain the attention of someone who is not giving them the time of day, or is giving their attention to someone other than them.
Carolyn is so jealous she is a cock-blocker to anyone and everybody. Why are people such haters and have to be cock-blockers? My ex is a cock-blocker with every guy I talk to.
by Prinzess10 December 09, 2013
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cock blocker

retarded ass people who clearly see ur trying to get some, and yet they try to stop you for their own pleasure
alonzo is a retarded fucking cock blocker, he busts nuts when he see's u talking to a girl so he tries to insert himself into the conversation
by youngpersonfromamerica March 11, 2009
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cock blockers

Somone who will fuck up your whole night by flirting with the girl your trying to hook up with.
If you want to get some,don't invite those guys, they are all a bunch of cock blockers.
by gettinglaid282 April 21, 2010
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Cock blocker

When someone blocks you from having sex
"cock blocker" you are at the bar about to leave with a girl about to have sex then all of a sudden a guy says "so how are your AIDS" to you then the girl leaves
by darkassassin9474 July 08, 2010
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