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9.
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
 
1.
neighborhood or where u live
he was chillin on my block
by ariel December 03, 2003
 
2.
brick of cocaine or brick of yayo or kilo
get a pot with the stove on warm get a block quicker then the ready rock form
by chris March 07, 2005
 
3.
1. In USA, "block" mean city block, 'hood, smallest area surrounded by streets.

2. In Central/Eastern Europe, Poland, post-DRG Germany & France, "block" is fuckin' HUGE apartment bulding made of concrete panels, where people live like rats in cages. Worst muthafuckin ghetto you can imagine.
1. Wudup man, what's the news on the block bro?

2. Oh shit, the elevator in our block is fucked up. We must go downstairs through 20 floors.
by hakoon July 29, 2006
 
4.
1. When drugs are pressed into a block shape also called bricks.

2. Street block.
1. "Man I got me some blocks of Weed!"

2. "Dude lets go to Chris's block."
by Gangsta Cornstalk December 10, 2005
 
5.
Probably the most useful tool on MSN messenger
what i do to retarted people who either say "ROFL OMG LMAO LOLZ" or a damn annoying white ho named morgan who thinks shes really cool, but shes a skank
by Protoza November 06, 2004
 
6.
Head, perhaps more Brit than American?
As in "I'll knock yer fucking block off"
by sevenhn February 10, 2006
 
7.
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