bonk

to deliver a blow to (someone or something) usually in a strong vigorous manner an overhead branch suddenly fell and bonked him on the head Synonyms bang, bash, bat, belt, biff, bludgeon, bob, hit, bop, box, bust, clap, clip, clobber, clock, clout, crack, hammer, knock, nail, paste, pound, punch, rap, slam, slap, slog, slug, smack, smite, sock, strike, swat, swipe, tag, thump, thwack, wallop, whack, whale, zapRelated Words batter, beat, buffet, bung, chop, cuff, drub, lace, lambaste (or lambast), lick, mangle, maul, pelt, pepper, pommel, pummel, rough; scuff; bunt, flick, stroke, tap; bump, butt, jab, jostle, kick, knee, poke, prod, push, shove, stamp; bowl (down or over), cream, deck, dump [slang], fell, floor, knock down, level; rabbit-punch, sucker punch; cane, club, cudgel, flail, flog, lash, sap, slash, sledge, sledgehammer, spear, stab, switch, thrash, whip; bean, brain, conk, skull