person one: what you doing today??
person two: hanging out with my gf why??
person one: what!! you can’t. today’s august 18 !! National gay day!! you can’t be with your gf you haveta have a bf!!
Gay: a person who is attracted to the same sex/gender and who marries dates or has a romance with. Shouldn’t be used to describe someone in a inappropriate way, it is not a thing to joke about. Same thing as lesbian.