When you are attempting to get close to a girl and your buddy won't leave the room or starts telling less than flattering stories of you that cause you to lose an opportunity with your new female acquaintance.
Sara was sitting on the couch in the living room, Eric had been talking with her all evening, the party was over, Eric was attempting to get close to Sara but David wouldn't leave the living room even though he kept nodding off.
by Eric December 8, 2004
by cassia;) May 13, 2009
Someone who takes or makes themselves obstacles in your way of you getting some action or a person you like or want.
Person 1: I really like Don, do you think I can get him?
Person 2: Mmm... probably but I just smashed him yesterday, sorry.
Person 1: Oh my gosh, you knew I liked him! You're such a cockblocker!!
Person 2: Mmm... probably but I just smashed him yesterday, sorry.
Person 1: Oh my gosh, you knew I liked him! You're such a cockblocker!!
by Corina Annetta March 15, 2011
To fully understand the ways of a clockblock, one must set a scenario. Ok, say you've been out all night hanging with this girl, and can sense that you are mere seconds away from going upstairs too hook up with her. Here comes your good buddy cockblock. His drunk, attention-needing self jumps right into the picture and tells your woman how beautiful she is, then throws up all over her. Instead of giving you a quality BJ, she drives old Cockblock home, leaving you by your lonesome to jerk off all night.
Male: You have really pretty eyes.
Female: Do you feel like going---
Lukas: I LOVE YOU!
Male:"Damn cockblock...."
Female: Do you feel like going---
Lukas: I LOVE YOU!
Male:"Damn cockblock...."
by Ruf August 27, 2005
by B-Unit December 8, 2003
Opposite of a Wingman. A person who deliberately gets in your way of scoring in attempt of them getting laid by the same lady you are going for. A player hater who won't let you get back on third base by blocking and gets you out of the game. somemone who has less of a chance of getting laid by the same lady and still decides to block you from getting laid as well.
In a room are two people engaging foreplay and the cockblocker walks in the room and physically gets inbetween the two partners preventing them from further foreplay/intercourse. I got cockblocked! partly due to hating on a player.
by Clinton Ziza Smith April 27, 2006
While I was having sex with my girlfriend, Bob cockblocked me by breaking into my room and throwing a wet paper towel at my face.
by KillaKinz March 1, 2009