'tain Share definition Flag to jack or lift something which does not belong to you. Derived from the word "obtain" Just got back from Wally World; 'tained me five sets of ping-pong balls and a pack of gum. 'tain by p-hil(e) August 6, 2008 0 0 Get merch Get the 'tain mug. Buy Now — $32.95 See more merch