"OGs" is an acronym for On Gay Shit, usually either casually understood or could very well be crypted text under the guise of two plus homies: usually involving a DL discreet referring to anything on the modern spectrum from a slightly coded as an understanding of, or up to full- throttle homosexual, gay acts. Tone can be candid or formal, funny or serious. OGs may not even be sexual at all, homoerosis, yet the essentialistic personal identity can be a gay man who ID's as gay. Also could be a straight (homoflexible or) anywhere on the spectrum to stand for a quasi definition of eros/ethos/pathos of homosexuality.
Straight Homie - "Whatchya upto today? You wanna come over, have a brewski, smoke some, and kick it for a few? My lady's out of town..."
Gay Homie: "Well I did have plans but now that I'm woke up and you're asking, I'm trying be ---OGs - on gay shit (as acronym)-.! Be there soon."