cock block

Someone who has, will, or wants to prevent a friend/random person from getting laid by a member of the opposite gender. Also, when a person knows he's not getting a piece of tail will do absolutely anything, best friend or not, to make sure nobody gets a pice of tail by the end of the night. Someone who will convince a member of the opposite sex to go home, instead of going to a party they were really excited about, by telling lies to prevent any others from having a chance of getting lucky.

When Kyle, John, and Boy Blue were chilling at a karaoke night, John invited a girl to com to the after party. On the way to pick up boy blues truck , Kyle was guranteed a piece of tail, for she was licking his ear. After Boy Blue had gotten his truck, Jenn decided to go with him. He then convinced her to go home, by telling her that Kyle and John were bad people. Steve IS A COCK BLOCK!!!!!!

by Tank AKA The other boy blue April 17, 2006

d block

A Yonkers rap group consisting of Jadakiss, Styles P, and J hood. The group is named after Jadakiss' cell block in jail.
To steal, rob

Yo i straight d blocked that bitches shit.

by chantel c January 1, 2008

jew block

An alternate definition to the original; this one is defined as:

When an Urban Dictionary editor rejects a request to add a word.

"Hey man I'm gonna add 'holy jesus-colored-muffinbuckets'
"Go for it!"
...30 minutes later
"Those fuckers Jew Blocked me!!!!"
"HA. sucks for yo ass."

by dantheman wec February 5, 2009

Box Block

Much like the term cock block for men; the Box Block is the reverb for a female. Defining the actions taken when one female steps in front of another female to void a sexual advance from a man.

This guy was totally hooked and about to take me home until Linda totally Box Blocked her!

by Scott Blau January 27, 2008

d-block

1)a level of a prison/jail (floor)
2)to steal something

1)yo.. i'm locked in the d-block
2)OH SHIT! I TOTALLY JUST D-BLOCKED THAT MO FUCKA'S STEREO!

by skimbad August 27, 2003

Ass Blocker 3000

The Ass Blocker 3000 is the third generation of the Ass Blocker tools, used to thwart off Bubbas, or 7ft tall homosexuals who will do anything to fill you ass with their cum.

The Ass Blocker 3000 impliments a new fully functional 360 degrees protection system run by the Gyro Gorge software to block all penetration from your anus, keeping you happy and un-raped.

The Ass Blocker 3000 will hit stores and prisons in Q4 2008.

The Ass Blocker 3000 totally saved my life man, the Bubba didn't know what he had coming.

Dude, without the Ass Blocker 3000, I'd be shitting cum right now.

by anoyomous69 June 13, 2008

spock block

whereas captain kirk keeps getting all the green intersteller women and not saving any for his wingman mr spock. (similar to cock blocking except it happens in the future.)

in a bar mr. spock was getting close to sealing the deal with a romulain female when captain kirk beamed in and totally spock blocked him.

by ragnar's vw May 12, 2009