TFDG Share definition Flag Abbreviation for That Fucking Dice Game. Slang term used to refer to the popular multi-player game known by various names including Liar's Dice and Perudo. Hey Matt, are you joining us for a game of Perudo?Nah, I'm not playing TFDG. TFDG by Fatkid_13 October 10, 2021 0 0 Get merch Get the TFDG mug. Buy Now — $32.95 See more merch