four-lettered man Share definition Flag N. A variation of three-lettered man, referring to a male homosexual. The four letters refer to Homo. We don't hang out with John. We've heard he's a bit of a four-lettered man. four-lettered man by One dude. May 24, 2009 0 0 Get merch Get the four-lettered man mug. Buy Now — $32.95 See more merch