flog, welt, whip, lather, lash, slash, strap, trounce -- (beat severely with a whip or rod; "The teacher often flogged the students"; "The children were severely trounced")
beat, beat out, crush, shell, trounce, vanquish -- (come out better in a competition, race, or conflict; "Agassi beat Becker in the tennis championship"; "We beat the competition"; "Harvard defeated Yale in the last football game")