it's a local Bronx gang in New York City. YG stands for Young Gunners. they're known for beefin with da YBz
yo we out them YGz is comin
by CheeseCake33 August 15, 2011
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Young Gangstaz, lower level blood gang members either pirus or brims. The term originates from LA the home of the bloods and UBN.
OG Blood: What up YGz , time to put in some work

Group of YGz: What it do OG, lets get it then, woop
OG Blood: Woopu
by OGBOMPTON March 24, 2016
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