bob

1 to make short up-and-down movements a family of ducks bobbing on the water Synonyms bob, bobble, jog, jounce, pump, seesaw, wagRelated Words jerk, jiggle, shake, wiggle, wobble (also wabble); oscillate, rock, sway, swing, undulate; drop, duck

2 to deliver a blow to (someone or something) usually in a strong vigorous manner he playfully bobbed his brother on the nose to get his attention Synonyms bang, bash, bat, belt, biff, bludgeon, bob, bonk, 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

a bunch of flowers the lassie carried only a little bob on her wedding day Synonyms bouquet [Scottish], nosegay, posyRelated Words boutonniere, corsage; arrangement; garland, lei