todd gibson is a cockblocker,he blocks others from a coworker he had already and dont want any longer.
he goes to extream to not let orther around her when she is drinking.
by robin allen October 22, 2003
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One who cockblocks, typically used to identify an individual who, intentionally or not, avoids in engaging in contact with another person, whether by phone, email or in person. The term infers a connotation that the individual in question avoid said contact is a basic "DICK" in nature for avoiding such contact.
I've been trying to get in touch with Todd all day, but that cockblocker's been dodgin' me left and right.
by Pottsy November 17, 2004
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adj. n. A person, ussually a female that her freind brings along on a first date in order to prevent you from having intercourse with her.
If that her FREIND wasnt such a cockblock i would have banged that girl!

I hate that girl's bestfreind, she's such a cockblocker.
by chris September 5, 2003
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A cockblocker is the often stigmatizing label given to an individual who, under social norms, is charged with and found guilty of one or more of the following acts (the range of acts is not limited to those mentioned herein):

1) She/He interferes when two people are flirting.
2) She/He interferes when two people are being intimate by way of kissing, dancing, or cuddling
3) She/He interferes while two people are engaging in genital intimacy, foreplay, or sexual intercourse
4) She/He interferes in any of the above acts that involve more than two people.

Normally a cock blocker is only labeled such when she/he interferes with the prospect of sexual intercourse, but since any of the above can lead to sexual intercourse, we can expand our definition.
1) Ron (aware of his actions) walked over to Jim and Sally's table while they were having a romantic dinner on their anniversary. Ron's a cockblocker.

2) James purposely coughed loudly to interrupt Jenine's and Michale's goodbye kiss. James is a cockblocker.

3) Tim walked over to Gregory and noticed that his hand was in Christiana's pants. He inconsiderately bumps into Tim, making him feel uncomfortable and thus pull his hand out. Tim is guilty of cockblocking.

4) Kathy hid all the toys her parents were planning to use in tonight's secret orgy at the Krusty Krab. Kathy is a cockblocker
by SinedIsahnac November 23, 2010
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A special door that keeps male chickens from entering a henhouse.
"Dude, that rooster is trying to get at the hens, but the cockblock is keeping him out!"
by Oleg Yavorsky March 22, 2009
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one guy ruining another guy's chance to score some booty
That fucking punk-bitch took my seat at the bar and eventually took home the girl i was talking to. He was totally cockblocking me.
by WillyStyle October 24, 2007
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when you are going to hookup with some chick and then someone (her friend, cousin, whatever) comes in and sees to it that it doesnt happen
tony getting cockblocked on g5 by whatever the hell her name was.
by jim June 6, 2003
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