OGs are experts in a certain field or niche that were there from the beginning and possibly even invented it. OG stands for Original Gangster. It originates from rapper @Ice-T’s track O.G. from the seminal album of the same name from 1991. Ice-T rapped about being a hardcore OG gangster from the streets and it now has come to describe anybody that has paid their dues in an industry, knows their sh#t and is not to be messed with.
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