1. Basketball slang; When a player is constantly blocking the shots of the opposing team.
Big Frank got about 7 blocks, dude having a block party.
by T. Grissom August 4, 2006
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Social gathering involving a "block" (roughly a pound or more) of marijuana.
Hey dad, pass me a pound so I can throw a block party for my birthday.
by Maxxxxxalbum August 23, 2009
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A group of guys 'invite' a girl to go on the block (they all fuck her) - must be 2 or more guys present and usually involves a number of high fives between the guys while the girl is getting smashed.
Guys invite a girl into the room, someone quietly locks the door.
Guy : hey have you heard of block party? (referring to the band)
Girl : yeah i love block party!
Guys : sweet, well lets begin.
One guy usually starts proceedings by quickly whipping his pants off.
by blockpartystarter July 12, 2011
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The act of intentionaly cock blocking some one with a group of at least four people. Usually the atom bomb of cock blocking, and sometimes has long lasting effects.
Jeff: You totally cock blocked me last night.
John: It was an accident.
Jeff: Accident! You ran out yelling cock block party with five other guys.
by Bestevaa October 27, 2010
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The act of having 4 or more poeple cock blocking someone who is trying to score on a chic.
Moy: I was trying to hit on Sidney but, yall cock blocked.
Campbell: Sorry but it was funny cock block party.
by Hotstuffluis December 31, 2011
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A Cornell University student legend who is obsessed with block parties for some reason.
"How did you hear about the Cook Street block party today"?

"I saw one the 500 posts that Block Party Guy made about it since last night"
by June 17, 2022
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When bricks of seized weed goes up up smoke by the PoPo and the surrounding area get's a contact high.
"DAMN! There's going to be a Rasta Block Party since they busted that illegal grow down the street."
by Bread of Corn October 30, 2015
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