cockblock 

A special door that keeps male chickens from entering a henhouse.

"Dude, that rooster is trying to get at the hens, but the cockblock is keeping him out!"

cockblock by Oleg Yavorsky March 22, 2009

cockblock 

1. To prevent a male friend or associate from getting some action.

2. Any such attempt to prevent a male friend or associate from getting some action.

1. Damn, Johnny just totally cockblocked his roommate. Ass.

2. OK, Isaac's making his move on Clarisse in the living room, and the game is on in fifteen minutes. We're going to have to attempt a cockblock.

cockblock by Jake April 12, 2003

cockblock 

what harry potter does on the regular to ron and hermione, literally almost everyday

whooaa did you see that cockblock the other day?

yeah i can't believe harry put his arm around hermione like that, ron was totally about to make a move

cockblock by ashsal June 28, 2011

cockblock 

1. To interfere with a man's attempts to seduce a woman.

2. abbr. Cockblocker(n.)

I was putting the move on this chick and Ralph showed up and cockblocked me.

cockblock by Anonymous February 6, 2003

Cockblock 

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.

Cockblock by Benqueedo Man October 21, 2016

cockblock 

1.The act of obstructing one person's advances towards another.
2.A situation that obstructs; an obstacle
3.An act of ill etiquette in which a male is speaking to one female in a group of females, and the alpha female creates a disruptive environment.

She is cockblocking you bro.

cockblock by The GIMP September 23, 2003

cockblock 

a person who interferes with one's sexual intentions with another person

Randy was a cockblock because he told Jaime that this guy she knew was just using her for sex.

cockblock by Bob Mastuff October 13, 2003