Not gay guy Share definition Flag A man who is CLEARLY homosexual, but won't come out of the closet "dude, you're so gay" "I AM NOT*voice cracks* GAY!!""ok!ok!" *mumbles* not gay guy... Not gay guy by datenshi09 November 3, 2010 0 0 Get merch Get the Not gay guy mug. Buy Now — $32.95 See more merch