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

cock-blocking 

When a friend of yours calls you while you are about to get it on, or when someone comes in while you and your partner are about to have intercourse and keeps you from it by talking, making noise, etc.

Dude, don't call me. Stop cock-blocking!

cock-blocking by Trey Smart January 4, 2008

cock-blocking 

cock-blocking
when your "friend's" jealousy attempts to find a way to prevent you from having sex.

Cock-blocking; my "friend" cock-blocked me last night so i milfed his mom.

cock-blocking by psychobabbleculvercity April 3, 2011

Cock-Blocking 

Cock-Blocking is when you stop a male from trying to hit on a girl.

It can also mean when you block a chicken on twitter.com.

"Hey this guy named chicken just called me a slur"
"Welp, you better get Cock-Blocking!"

Cock-Blocking by Totally not NuggNugg DoesStuff May 10, 2021

Cock-Blocking 

To Spit Game at a selected girl,that already has a man. (Men)

Basically the main goal of the man "Spitting" is to make the girl like him more than the other guy, hence:
"Cock-Blocking".

Cock-Blocking by W.A.R November 19, 2007

Cock-Blocking 

An act wherin a kind soul will hit on a chick who has been stalking his friend so that the friend may pursue intimate relations with a hotter chick.

Dude, that guy was cock blocking Christine when you were trying to get with Lisa. You definently owe him one man.

Cock-Blocking by samoaneminem January 14, 2004

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