Slang term used by one individual to title another in greeting; used in replacement of words such as "dude," "man," dawg," or "G." Originally, "block" was conceived by an individual known only as, Shwin; nevertheless, the word gained increased popularity as, IHOD (the larger group of friends to which he belongs) implemented its usage in countless phrases now made popular in society.
"What up block?"

"Where you at block?"

"Yo block, lets get these chicks back to the crib."
by Board of Admissions January 22, 2011

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The most useful and most immature tool of MSN Messenger
"Some mofo was talking to me on msn and annoying the shit out of me so i hit the block button and blocked them!"
by gapi June 10, 2009

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A technique used in social networking when one doesn't want to communicate with a particular person any more. Usually involves going to the residence or workplace of the offender and beating their face in with a cinder block.
"Jerry was really getting on my nerves so I had to block him. He's in hospital now."
by Waldo L.S October 12, 2012

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Short for "monoblock," a type of cast automotive wheel. Common in Southern rap, particularly from Houston.
"Sittin' fat down south, rollin' Benz on blocks, mo' scrilla I got signin' with Short Stop..."
-Lil' Will, from Lil' Troy's Wanna Be a Baller
by Adrian West January 22, 2009

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(verb) how to avoid talking to certain people on AIM. You can "block" people so that they won't be able to chat with you and vice versa. Sometimes used as a a temporary punishment when your friend was alledgedly "unfaithful."
"I blocked her after I heard she was cheatin' on my bf, Jimmy."
by Forturne Cokie August 30, 2004

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Black Spock.
Oh yeah, Twofer is hired back, and after he wants his name changed back to James, he realizes that "Twofer" is a lot better than "Gleefer, Kanye East, Super Virgin, or Block (short for Black Spock)."
by petedrover April 28, 2010

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Australian Slang for 30 cans of beer in a box.
1 - Fuck getting a slab mate grab a block! its like getting more beer for free!

2 - Grab a block mate
But only shit beer like emu and new make em
by drunk_aussie May 12, 2005

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