cockblocker

Cockblocker: 1. (noun) a female friend who accompanies another female friend to planned meetings with a male peer, to ensure that the sista does not get into trouble;
2. (Noun) a male who interferes with another male's attempt to freak the woman whom the former either wishes to protect as a friend, or is already pursuing himself;
3. (Verb) to cockblock: basically, to interfere, by way of one's mere presence, with the attempt of one person to freak another

1. Jill "Jane, I really need you to come along tonight as my cockblocker so I don't do anything I would later regret.
Jane "Sure"
2. I made my move toward that hottie Jennifer with the thought of grinding with her. That cockblocker Alex cut in and got it first.
3. Alex cockblocks all the time

cockblocker by Doobie Smokes You December 2, 2004

cockblockatron

1 Someone who cannot stop being a cockblock, and seems to have a man-crush on one of their friends who they cockblock, or someone who is unhappy with their situation so they want to make their friends suffer by cockblocking them.

2 Someone who seems to cockblock everybody all of the time for no apparent reason.

Sam is such a cockblockatron, he keeps showing up whenever im trying to get some ass.

cockblockatron by anononononomyous December 27, 2008

Cockblocked

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.

Cockblocked by jim June 5, 2003

Self-cockblocking 

The act of being so stupid that you always ruin every single chance you get at getting laid

Guy1: That guy sucks at getting girls.... Guy2: If only he'd stop self-cockblocking, then just maybe he'd lose his virginity.

Self-cockblocking by Xero _ Manifest October 22, 2010

female version of cockblock

Clam Jam.

To prevent your female friend from getting laid.

Female version of Cockblock

Sammy : I almost got laid last night but laura was such a clam jam.

female version of cockblock by Laurerz November 9, 2013

cockblocker

A person who interferes with anothers chance of geting laid.

Spoon is the biggest cockblocker of them all.

cockblocker by Anonymous October 5, 2003

status cockblocker 

someone who the facebook poster does not know very well or like very much. By commenting, this annoying person will prevent the friends of the poster on commenting for fear of the situation becoming awkward between them and the blocker.

1. I wanted to comment on your statuses, but that status cockblocker michael feels the need to comment on every single one.
2. I do not know steve that well, and I can't comment on any of your statuses because that status cockblocker keeps beating me to it.

status cockblocker by dpolotsky March 14, 2010