43
Someone who takes or makes themselves obstacles in your way of you getting some action or a person you like or want.
Person 1: I really like Don, do you think I can get him?

Person 2: Mmm... probably but I just smashed him yesterday, sorry.

Person 1: Oh my gosh, you knew I liked him! You're such a cockblocker!!
by Corina Annetta March 14, 2011
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44
someone who prevents a guy from using his dick to satisfy a woman
That fuckin cockblocker wouldn't leave Tom's house last night when he was anxiously awaiting to fuck Sarah.
by Katie S. March 20, 2006
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45
A person who has unnatural tendencies to stop sexual encounters before they begin.
Terrible. Some chick cockblocker screwed me big time
by Meandmybaby June 27, 2011
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46
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 27, 2008
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47
1. A female who accompanies her male friend(s) out and then prevents them from getting any attention from other females by her mere presence. Other females will think she is his girlfriend. So then if he tries to run his game, he looks like the asshole who is hitting on other girls right in front of his "girlfriend."

2. An ugly girl who comes out with her cute girlfriend(s) and prevents the cute girls from getting any game.

3. "Girls' night out." This is a cockblocker by virtue of its name and implications. There will inevitably be a girl or two in this group who are man-haters. They will brainwash their cute girlfriends into thinking men are bad, players, jerks. They will convince their cute girlfriends that girls need to stick together, no men tonight.

1. Joe: Does Judy really need to tag along with us tonight? She's such a cockblocker, everyone thinks she's my girlfriend!

2. Cody: Hey Trevor, that girl is cute. Will you be my wingman and distract her ugly friend while I go talk to her? Trevor: No way dude, her friend is hideous!

In this situation, the ugly girlfriend is cockblocking her cute girlfriend.

3. Jessica: It's girl's night out! Yayyy no guys tonight! Ok girls, remember, we gotta stick together. Don't get sucked into any man-traps!
by TNTgirll September 15, 2007
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48
Street term for the female contraceptive device otherwise known as a diaphragm.
Paulina was impregnated by Joe because she forgot to put her cock blocker in that night.
by Robert Polack May 01, 2008
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49
An ugly and/or fat girl or gameless dude who, out of lonliness or possibly sheer contempt keep others from achieving sexual satisfaction with a chosen partner.
That motherfucker Jrge is a cockblocking motherfucker
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