A person that looks gay at first but isn't.
He "gives a gay first impression"!
Guy 1: "Hé i'm Dirk".
Guy 2: "Hé i'm Murray".
Guy 2: "Are you a GAGFI"?!!!
Guy 1: "A what"????
Guy 2: "Yeah man!!. You give a gay first impression".
Guy 1: "NO FUCKING WAY!!!!!"