Cock blockin/ cock blocking 

Similar to cop blocking, only more specific. An interference, that brings a hault to any sexual act involving a man's (or a woman's in some cases) penis. It is sometimes used even when a man (or a woman with a penis) is just talking to someone, this is a stretch but is appropriate as long as their intentions are to eventually have sex with the person they are talking to, and they have some chance. If the person they are talking to shows no interest, and one interrupts...then they are probably doing this person a favor. Either that or just adding insult to injury.

Yo we was kissin, she had her panties off and her hands all on my dick, I was just about to smash...>sigh< until John cock blockin ass "accidentally" walked in on us.

Cock blockin/ cock blocking by FooGe March 26, 2004

Olympic Cock blocking 

cock blocking at a level so high, that you cant believe the person that is attempting to prevent you from gettin some play is still trying. so it can only be known as the Olympic level. this person will try to pull out every excuse to prevent you from having a good time, whether boy/girl, even if it means making a bullshit excuse or story to avoid a possible score for you. these people are basically trying to play defense when they are already down by six TD's in the end of the fourth and you are guaranteed the trophy and all that shit.

the party is coming to an end and Im vibin' really good with this one chick. but some asshole is tryna get in the way of my score with this chick and i hurdled all his shit like it was the olympics. he tried to invite other people to stop me from gettin my girl, he jumped into every convo we was tryna have. this dick even tried to critisize some small stuff like the color of my shirt to make me look like a shithead. yo even tried to split a cab with me an my girl but my girl set him straight by saying she was going home with me and thats when everybody at the party knew his ass was tryna cock block at an olympic level,so it could only be described as Olympic Cock blocking.

Olympic Cock blocking by sweetrod willy March 5, 2010

cock blockin 

when a guy is tryin to get laid but
his friend or a her friend or any random person who is a dickhead prevents it

"dude you were totally cock blockin me!!"

cock blockin by wassup wassup January 4, 2008

cock blockin' 

when a guy is tryna holla at a girl but anotha guy interferes.

"I was at the mall and I was talk to this fine ass gurl, but den this dude gon' come and start cock blockin me. I almost beat his ass!"

cock blockin' by FyNeMa4ShO September 7, 2005

Cock Blocking by Omission (CBO) 

(verb) the act of blocking one's cock by not introducing him to hot female friends

"My cousin is totally CBO-ing me by not introducing me to her hot soccer friends."
"Oh man...she CBO-ed you real bad."

--Cock Blocking by Omission (CBO)

Cock Blocking by Omission (CBO) by Barrett, Jack January 22, 2009

cock blocking

To hinder, by whatever means, the chances of another male from getting a sexual encounter with a female.

Man, will you get da fuck outta here and stop cock blocking me you Ja Rule loving parasite.

cock blocking by The gifted 1. June 12, 2003

cock blocking chakra 

A song performed by the band Classy Smut about a tube sock wearing lesbian who is still in the closet.

That veterinarian has a cock blocking chakra.

cock blocking chakra by jakethesnake63 November 24, 2011