clobber

(1) to beat or batter

(2) to defeat utterly

(3) to criticize severely

ETYMOLOGY: 20th Century: of unknown origin

(The Collins English Dictionary © 2000 HarperCollins)

We obviously like this concept -- clobber has many synonyms:

beat, beat up, better, blank, blast, bulldoze, clobber, conquer, cream, cripple, crush, deck, demolish, destroy, drub, exceed, excel, flax, floor, knock off, lambaste, lick, mangle, master, mutilate, outclass, outdo, outshine, outstrip, overcome, pommel, pound, prevail, punish, put away, ruin, shatter, shoot down, shut down, smash, surpass, take down, tan, thrash, top, total, transcend, trash, triumph, triumph over, trounce, wallop, waste, wax, whip, whomp, whop, wipe, wipe out, worst, wreck, zap


Note:

There is also a further meaning of clobber (British slang):

(4) personal belongings, such as clothes and accessories

ETYMOLOGY: 19th Century: of unknown origin