n. Old gay face. What years of partying hard, tanning, and manorexia do to a gay man's face. Typically characterized by deep lines around the nose and mouth and dull skin. Often occurs to men in their late 20's and early 30's despite the fact that they're not old. Botox and fillers are used to combat OGF but leave the user looking plastic and shiny.
"Wait, he's only 28?! He's got major OGF!"