When you're hanging out with a girl, and one of your friends tries their hardest to split you and the girl up as a joke. This makes your friend a cockblock.
Clayton: Hey so do you maybe wanna-
Colton: LET'S GET OUT OF HERE DUDE!
*The girl Clayton is talking to leaves.
Clayton: Thanks cockblock.
Colton: LET'S GET OUT OF HERE DUDE!
*The girl Clayton is talking to leaves.
Clayton: Thanks cockblock.
by Benqueedo Man October 22, 2016
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 08, 2004
To interfere with a male's attempt at talking to a female or the other way around, especially if it involves sex. This is mainly performed by obstructing the path between the male and the female. Normally, the person that's doing the "cockblocking," has the intention on talking to the male/female.
BABY MAMA: I'm talking to this guy now name Terrence. He's a nice and comical guy.
BABY DADDY: You gonna have to cut that man off, I don't care if he's nice or not, he better not be in the picture.
BABY MAMA: Oh, now you wanna cockblock for the simple fact that I moved on without your sorry ass.
BABY DADDY: You gonna have to cut that man off, I don't care if he's nice or not, he better not be in the picture.
BABY MAMA: Oh, now you wanna cockblock for the simple fact that I moved on without your sorry ass.
by Mr. Terrence L. Trezvant April 04, 2008
by mgemfp208 July 19, 2011
noun: Someone who prevents a man from having any chances with a woman.
verb: to prevent another from having relations with a woman.
verb: to prevent another from having relations with a woman.
by Sir Thomas Aquanis April 28, 2010
John just kept on hanging around, killing any chance of getting laid by Peter...John was such a cockblock!
by Jewels49 February 04, 2010
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
by RJ FLeming June 24, 2005