TAB Share definition Flag (noun) Meaning "Tweekin Ass Bitches". Term comes from mid-western U.S. Any group of female "tweekers" who hang out together & take too long with simple tasks. A TAB crew will take 6 hours to put on make0up just to go to Wal-Mart. TAB by Shabby_one February 11, 2010 0 0 Get merch Get the TAB mug. Buy Now — $32.95 See more merch