cock block

1)Any person or group of persons interfering with an attempt someone is making to have sex with someone else.
2)The City of Pittsburgh.
3)That twitchy guy who just ruined the mood.

Joe, John, and Harold tried to cock block Steve, but it didn't work.

by Hung Lo May 1, 2003

cock block

- third party that keeps you from engaging in sexual activities with that special someone in a given amt. of time.

I can't believe her. She could obviously tell we wanted to do stuff. She's such a cock block.

by Poseur December 28, 2005

runner's block

a lack of will or reason to run. Often lasts weeks. Comparable to writer's block.

I only ran 2 miles tonight because I just can't get past my runner's block

by Runner of the People November 2, 2009

M block

The hoodest block that in your city

To say its the get money block or money ave

Also where all the moneyboiz of the city work

Those boys on M block always get money!

by Wayne Montgomery June 11, 2008

bust a block

to continue driving around a residential area in order to finish hot boxxing, smoking out, listening to a song, or to see if someone is home. Also, can be used as slang for looking for a hooker.

"This joint ain't out yet man..."
"Thats cool, we'll just bust a block!"

by rochellemygabelle April 29, 2008

taco block

Like a cock block, but perpetrated by a female.

I was eyeballing a cute guy at that party last Thursday but I got taco blocked by that girl with the curly hair before I could make my move.

by L_Ho February 5, 2010

cum block

Similar to a cock block, this is the act of walking in someone (usually a male friend) while they are having sex, to stop them from making it all the way.

Guy 1: "I was rooting this chick the other night, I was about to blow but my mate walked in and totally cum blocked me."

Guy 2: "Tough luck man."

by mr.seed May 16, 2008