92
The act of one male hanging around a female he likes to deter other males from talking to her.
I really like Janet but that guy is totally cock blocking her.
by Jax_666 December 07, 2007
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93
When a guy who is trying to get laid doesn't because another dude says or does something to prevent that from happening. Can also occur between women (also known as twat swatting).
A man's dumbass friend spots him trying to make a move on the hot blonde girl at the bar and decides to be a real dick and cockblock his mate.....

Man: Hey let me buy you drink....
Woman: Yeah sure
Dumbass: Hey man, how's your AIDS? *walks away*
Man:.........fuck.
by P. Trotsky January 25, 2011
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94
An attempt to block another's sexual intentions by an object, friend (or foe), family member, pets (kittens), or extraterrestrials (the womens friends).
When trying to seek action from your female counterpart, you are interrupted by the "cute" kittens (cock blocks) who were sent from Hell to ruin your intentions.

You have been planning on watching a movie with your female counterpart, with hopes on "gettin" in there. You recently found out that a chick flick was rented, and all the extraterrestrials are going to raid the bedroom, ruining any chance of stimulation.

When a friend or foe approaches you and the smokin' female your mackin' in a bar, and asks if your herpes have flared up recently.

by Mist_SiR February 13, 2008
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95
a cockblock is when one guy is trying to get some from a girl an there together an anohter guy comes in a aslways ruins it ; maybe on purpose maybe not it doesnt matter
Your being a cockblock im trying to get some.
by RJ FLeming June 24, 2005
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96
someone stupid and annoying who is always in the way when a guy is trying to spend 'alone' time with his girl. these are very annoying and can be often defeated by spraying water on them till they melt or kicking them hard in the genitals.
"hey did it ever go anywere with that girl your into?"
"no unfortunatly that cock blocker tommy H was around"
"dude that sucks, im soooo sorry, will you ever recover"
"no."
by funnyfunnyfunny February 23, 2010
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97
A device you put over your anus to stop horny queers from inserting there penis in your ass.
Thanks to cock block dalton's anus is cock free.
by jessec63 January 13, 2008
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98
to knowingly take one persons efforts with the opposite sex and substitude the first person with ones self
i was hitting on this fine woman and this guy cockblocks me and steals her from me.
by raul January 16, 2003
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