shay fuck Share definition Flag The act of anal penetration, as with one's penis. I think I love her man, I think I'm ready to share the most intimate of things with her, I think I'm gonna shay fuck the shit out of her. shay fuck by Micah DW November 18, 2007 0 0 Get merch Get the shay fuck mug. Buy Now — $32.95 See more merch