cockblock

This is the act of a good male friend (or sometimes a boyfriend) moving closer to a female friend of his or even dancing with her so that a sketchy, unknown man does not start to get too close. This act is often performed in crowds (ie. clubs).

Often times, if there are more than a 1:1 ratio of guys to girls, a single guy may have to cockblock for many of his female friends/companions.

This is usually appreciated by the female, who generally thanks the male in the cab ride back.
That sketchy guy was hitting on my friend so I had to act like her boyfriend, thus cockblocking that sketchy guy from grindin on my friend!
by Amaan July 26, 2005
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cockblock

to be blocked while trying to get some action
while i was running my game on sam, rotunda jones( her fat friend) tried to cockblock me
by Mr 1 derful September 29, 2008
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cockblock

to get in the way of 'play'.
Hey ugly third-wheel person, don't cockblock.
by noelle April 22, 2003
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cockblock

1. Originally applied to males. Any act blocking the pursuits of another through alphamale/dominant/dickish behavior.

Originally observed and defined in Moore Hall, 4th Floor, College Station Texas while watching a porn. A male actor was lining up his approach on a female actress in doggy style scene when Peter North pushed the lesser known actor out of the way and took "pole" position for himself. Henceforth this was known as the "cockblock". The term has grown from there.
I got totally cockblocked at that orgy on Saturday and ended up with a dwarf exchange student.
by rockit88 April 10, 2010
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cockblock

Sis! Why did you cockblock/cockstop me by coming into the room, while Jessica was giving me head?
by IRPimp May 21, 2004
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cockblock

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 17, 2003
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cockblock

One of those things they put in between each urinal in a lot of gents public toilets so there is no peeking.
Thank God there's a cockblock there, Steely was trying to look at my package.
by Martin September 24, 2003
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