GBC.. a group of the hottest,sexy, stylish persons ever! They party hard and always look good! If there is a GBC boy.. guys hate him.. the ladies adore him and likewise for the girls (persons of the same sex feel threatened by GBC members) but that don't phase them. They always get what they want so everybody else is jealous! Everybody wants to see GBC go down. They got class, they got swag! They are extremely happy people always laughing and making the best out of every situation! They are best friends and love and care for each other greatly..
Ugh.. They goes GBC walking across like they own the place! I hate them so friggin much!!!
by Royaltii April 2, 2010
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Gardan Blocc Crips, a Sacramento gang.
"I am g from the GBC" - C-Bo
by Philip April 27, 2003
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Verb/Noun

A girl/guy with just enough mental issues that you can extort or manipulate them for your own gain
{Verb}
-What the fuck Jeff did you hear that Daniel pulled a gbc on Emily dammn he got some good suicide nudes from her

{Noun}
-Holy shit I cant believe Jessica is a gbc lmaoo she's totally autistic.I cant believe its that easy to get tits
by DigBickWigga69 November 22, 2021
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A really cool and hot person who has a gbc fan page
Person 1: have you seen the fan page called gbc in the castle
Person 2: no

Person 1: she’s really cool and hot
by gbc.in.the.castle October 9, 2021
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get back crew. When doing an action to reprimand people of negative actions done to yourself or friends.
they egged your and my houses. now we’re gbc
by kingdaddy3 July 6, 2021
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