F.Y.I.T.A. Share definition Flag Also known as Fuck You In The Ass, is a way of insulting someone to their face without them knowing better. Hey David, F.Y.I.T.A. F.Y.I.T.A. by The Big Thicc August 11, 2019 0 0 Get merch Get the F.Y.I.T.A. mug. Buy Now — $32.95 See more merch