50
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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51
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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52
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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53
A person who gets in the way of a couple getting their freak on.
A prison worker who tries to keep a couple from havin congigal trailer visits so they can get their freak ON is a def cockblocker.

They don't do their job, delay the paperwork and even lie instead of simply finishin stuff up.

by Sexy Sadie69 December 16, 2007
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54
The guy was about to stick his cock into the fine-ass bitch when the Cock blocker came out of no where and side shoved the guys cock.
by Cock Blocking 101 October 10, 2009
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55
Accomplished Cock blocker:
When this guy walks up, he says "CHECK IT!" and like a bull, body slams you out of the way, with his gargantuan neck roll, in order to get next to a Pump,(a female - his words)
He flexes and raps for a bit (always flexing), and then without reason - Just leaves.
You think he's gone – But, oh no, like being hit by a train, the madness starts all over again.
He returns, body slams you again and continues on his quest for rejection.
When confronted, like a Chameleon, he changes colors and tries to redeem himself by flattering you in front of the Pump..Not meaning a word of it.
Later, after he's sober, he will make excuses and try to persuade everyone around him that he did nothing wrong and that he is the victim.
This is also the guy, when cock blocked himself, immediately declares "COCK BLOCK!-COCK BLOCK!" at drop of a hat and announces it like Chicken Little or the Town Crier.
This is the worst kind of Cock Blocker.
Sean - "Here's to you!" Heavy weight Champion and Accomplished Cock Blocker.
by Cockblocked! August 23, 2005
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56
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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