cock block ring 

A device simple or extravagant that when placed on a woman's left ring finger effectively blocks her from accepting the advances of other men regardless of the qualities the other men possess.

Other names for this device are "promise ring" or "engagement ring"

Chris's friend Tim "Hey Chris I just saw your girl having dinner with another guy... I think you are in trouble because they looked damn good together!"

Chris "damn I better give her a cock block ring!"

cock block ring by Romandell October 22, 2017

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 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

Facebook cock blocking 

When one interrupts a 2 person comment chain on a Facebook status update, picture, etc. Typically, the original commenters will start a nice, engaging conversation, and then the "blocker" will barge in with a totally unrelated comment, thus disturbing the flow, and consequently delaying your chances of scoring with the hot chick that's totally interested in what you're doing for the weekend...

-Dude, why are you facebook cock blocking?

-Sorry man, if I knew you were trying to bone that chick, I wouldn't have made that fart joke.

Facebook cock blocking by Sweatshop February 16, 2010

cock-blocking 

When a guy or a friend tries to get with a girl your talking to, hence, "Cock-blocking". Keeping you from getting a piece of ass.

"Dont be cock-blocking me from my girl you fag!"

cock-blocking by Johnny B September 3, 2003