UABH Share definition Flag pronounced ooh-baa. Use a Bigger Hammer. Another way of solving a mechanical or construction problem usually by destroying said problem with a "hammer" When life gives you a big problem, UABH UABH by Sharky86 July 12, 2009 0 0 Get merch Get the UABH mug. Buy Now — $32.95 See more merch
