A person who has unnatural tendencies to stop sexual encounters before they begin.
Terrible. Some chick cockblocker screwed me big time
by Meandmybaby June 28, 2011
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A person who gets in the way of a couple getting their freak on.
A prison worker who tries to keep a couple from havin congigal trailer visits so they can get their freak ON is a def cockblocker.

They don't do their job, delay the paperwork and even lie instead of simply finishin stuff up.

by Sexy Sadie69 December 16, 2007
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A person who blocks the action of a guy trying to make a move on a girl.
**sitting on the couch**

Dave: Hey hallie, your very pretty.
Hallie: why thank you.
*dave leans in to kiss her*
*sarah walks in & sits in the middle of them*
Sarah: hey guys! nice night? yes?
Hallie: WHY ARE YOU COCKBLOCKING?
by hahhahh hallie. April 6, 2009
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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.
by Mr. Terrence L. Trezvant April 4, 2008
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What Harry Potter does everytime he sees Ron and Hermione together
by mgemfp208 July 19, 2011
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noun: Someone who prevents a man from having any chances with a woman.

verb: to prevent another from having relations with a woman.
by Sir Thomas Aquanis April 28, 2010
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When Ben10 CockBlocks man like Dan the Man.
Cockblock is a common trait in which the Dan the Man is often a victim of the Ben10 CockBlock makes you come in ya sock, instead of letting you fill your boots, no puss in the boots, no real roots or zoots and toots. Four bangs by ladies of the night are needed, man like Dan and six dogs nearly breeded. Shudditdoon.
Ben10 cockblock make ya come in a sock
by Popsinator January 2, 2022
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