OG /oʊˈd͡ʒiː/adjective 2noun 3forms 4 adjective2 •(slang) Traditional, authentic, old-fashioned, or old school.A lot of people freak out at the idea of lard, but it's actually not that bad for you, and it's what they use in O.G., legit-sh*t tamales—and I'd imagine that's what the abuela in Coco is making — 2018 •(slang) Relating to a username which is a common word, phrase, or name.Accounts with OG names like "Daniel" or "summer" can often fetch a high price.I joined Twitter pretty early and managed to snag a semi-OG handle. noun3 •(US, slang) Anything associated with an earlier, more traditional, and perceivedly more authentic era.And we’d all go to the true O.G., Julius’. It’s the oldest gay bar in New York, plus it has delicious grilled cheese sandwiches and French fries. — 2021 •(US, slang) Initialism of Original Gangsta; a person associated with the earliest era of gangsta rap. •Initialism of own goal. formsOGs · ogs · more OG · most OG