UFTCL Share definition Flag The abbreviation used when you see a Unidentified Flying Trash Can Lid, that can be eaisly mistaken for a UFO. Guy 1: "IS THAT A UFO?!" Guy 2: "No man. Its a UFTCL." UFTCL by FreeHugssGirl August 1, 2012 0 0 Get merch Get the UFTCL mug. Buy Now — $32.95 See more merch
