Moraga Bay area Gangstas is the main meaning but other meanings have also been created.
Moraga Badass Girls
Mac'n Big Gangstas
Makin' Big Geez
Most Balla Gangstas

The most gangsta chicks of Moraga. That's all there is to it.

"We iz what we iz!"
Those girls are such ballas, they muct be from the MBG!!
by K-FED n Mac Dreezy December 21, 2006
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Abbreviated form of Mexican Baby Gorilla - possibly the most annoying little fucker on the planet.
Chelsea: What is that orange thing over there? Oh yes!

Jim: Oh, that's an MBG, h'okay?

Chelsea: OMG that MBG is so fucking cute!

Jim: Actually, that MBG is too friggin' adorable, and it's pissing me off!

Chelsea: What? That little fucker is mocking me now! Why does it like it when I cry?

Jim: Poor Chelsea...
by trolling_motor May 05, 2011
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MBG is a entertainment gang lead by the most drippest, coolest, godliest YouTuber MattBreezy.
So you part of MBG? (Matt-Breezy-Gang)
by November 17, 2020
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Money Bound Gang Basically A Life Style And Known as 009 nIt Was made In New Bern Nc
MBG Members Are , Fazo , 2x , Chapo, Huncho, Glizzy and SwervoTurbo Etc
Them MBG boys Go Crazy
by big faddy345 October 08, 2020
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Money bound gang known as 009 from new bern nc
MBG killed them Moe niggas
by big faddy345 October 08, 2020
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A group of men with a lot of Money Bitches and guns
Them MBG boy got that dumb shit 💯
by MBG5eva December 22, 2020
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Muscle Booty Gang, now known as Muscle Booty Nation (MBN) is a prestigious gang/nation associated with men that have muscular booties. To get in you must be a male with a muscular booty and send booty pics
Damnnnn...he gotta muscle booty invite him to MBG
by MBG MEMBER December 22, 2018
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