F.I.O.S Share definition Flag Figure it out, stupid. The go to reply for a dumb question. Jeff: Hey, how do I hold all of these rubber bands? Michelle: F.I.O.S F.I.O.S by makemewannashoop May 5, 2020 0 0 Get merch Get the F.I.O.S mug. Buy Now — $32.95 See more merch