Cockblocked By Association 

When you can't date, or have sex, with someone because they're the friend of someone you dated, or had sex with. Most commonly experienced when one wants to date one of an ex's friends, but they can't, because they're the friend of their ex.

"-I wanna date Jenny, but she's my ex's best friend, so I can't.
-You my friend, have been cockblocked by association."

Cockblocked By Association by DarkwingMotherfuckinDuck March 20, 2010

Captain CockBlocker 

A person who goes out of their way to ensure that another person doesn't get laid. Unlike the cockblocker who may do so once in awhile. Captain Cockblocker is always there to ensure one doesn't get any action.

Dum Dum Dum! Look in the sky, its a bird its a plane...NO...its CAPTAIN COCKBLOCKER!

Captain CockBlocker by Lumandi23 December 21, 2008

cockblockers 

people who interfere with a person's ability to get laid.
can be used for women and men.

Why are these whores being such cockblockers! I saw him first!

cockblockers by twouptwodown December 21, 2008

Cockblocked by Steve Jobs 

When you're texting a perfect babe and then the iPhone's auto-correct kills the mood.

Victim: I wanna duck you in my parents ned. Tight cow.

Babe: ...?

Pervy Onlooker: Cockblocked by Steve Jobs again? That ducks, man.

Cockblocked by Steve Jobs by Vonnegut better. September 5, 2013

clockblock 

When you're having a sexual dream and it's interrupted by your alarm clock.

I was about to screw this chick in my sleep at 7:59 and at 8, I got a clockbock. The alarm fuckin clockblocked me. Dirty bastard.

clockblock by Anthony-RJ October 17, 2008

cockblocker

Someone who blocks you from gettin with a girl

Emanuel cockblocked me at the mall today

cockblocker by InFaMouS March 28, 2003

clockblock 

to tell the time before anyone else gets the chance to; similar to the cockblock, but for the current time, not penetration

Derpina: Guys, what time is it?

-race to check the time-

Derpington: It's derp o'clock.
Herpanna: Dammit, Derpington, you always clockblock me! I wanted to say what time it is!

clockblock by no_lyf November 19, 2011