Quinch Share definition Flag A gay man who has never experienced a woman, not even once. A pure bred homosexual. Tom Brady is a quinch. Gisele is his beard. All of his kids are really fathered by Marky Mark Wahlberg including the one with Bridget Moynahan. Quinch by Howard Alan S. January 11, 2014 0 0 Get merch Get the Quinch mug. Buy Now — $32.95 See more merch