jockblock 

the act of stopping douchebag jocks from messing up a nerdy friend's move on a girl.

*after nerdy friend approaches girl and douchebag jocks are coming*
You: "Hey assholes! I'm a midget on a tricycle!"

Douchebag jocks: "Oh man let's go!"
Other friend: "You sure jockblocked Jimmy real good bro."

jockblock by Dane and Lylan October 29, 2011

cockblocktopus 

A cockblocker so talented it seems that he can block 8 cocks simultaneously.

"Man, that cockblocktopus is killing that whole section of the bar".

cockblocktopus by demar77 March 31, 2008

Cockblockistan 

A small country (home) usually inhabited by a single father with his children living with him preventing the random hook-up or the ability to travel at will.

Friend: (12:00am call) I'm drunk and horny..come over
Dad: Sorry cant do it. I cant leave Cockblockistan

Cockblockistan by King Needsome December 27, 2005

Lockblock 

When one person prematurely trys to open the passenger door on a vehicle while the driver simultaneously trys to unlock the door, causing it to relock and keep the passenger outside.

"Hey man let me in the car already, it's cold out here!"

"I've been trying to, but you've lockblocked me like 5 times in a row now!"

Lockblock by Stytches June 9, 2005

cockblockery

The art and practice of cockblocking, generally in reference to intentional, rather than inadvertent, acts of cockblocking. However, this term can also be used to describe the tendencies of a person who possesses a certain oblivious demeanor that lends well to unintentional, albeit frequent, cockblocking activity.

This has to be at least the tenth time Stu has destroyed my chances. That guy's penchant for cockblockery knows no bounds.

cockblockery by UncleShylock July 25, 2006

dockblock 

To arrive at a bike sharing station with the intent of returning your bike, just to find it full.

The other day I got dockblocked at 14th and Harvard when I was about to dock my bike when some douche came out of nowhere and took my spot.

dockblock by BikeShareGuru June 21, 2011

cockblocker

A male who unwittingly(out of ignorance) or purposefully(out of jealousy) prevents another male from engaging in debauchery with members of the female sex. Females can also cockblock, but the true essence of the word lies in the metaphor of the penis used figuratively as an impediment which thwarts any possible chances of scoring with members of the opposite sex.

friend # 1 interrupting friend # 2, who is conversing with a female at a local bar.

"Hey i don't mean to interrupt, but did you ever get the results of those STD tests that you took?

"Hey, does your Wife know where you are tonight?"

" Does your probation officer know you are here tonight?"

'What we talked about before, your experiences with Thai She Males... it's totally between us. carry on!"

"Friend # 2-- Boy, you really are a cockblocker, aren't you?

cockblocker by Lex Taliones January 17, 2010