moon gay

A ordinarily straight person who, after a few evening drinks, loses the inhibitions to prevent their gay from being revealed.

Kyle has a girlfriend, but when the sun sets, he transforms into a moon gay.

by St. Louis Slang July 16, 2015

Blue Moon Gay

A straight guy who desires to have his cock sucked once in a blue moon. Comes from the cliché, "once in a blue moon," which means a very rare event.

Gay #1: So I blew this straight guy yesterday behind the bar
Gay #2: Are you sure he's straight?
Gay #1: Yes; he's married and have kids
Gay #2: Hmm ... must be a blue moon gay

by TheBEEB April 7, 2010