flail

bang, batter, buffet, knock, pound, smack, spank, thump

flick, flicker, flit

fan, oscillate, sway, swing

undulate, wave

palpitate, pulse, throb

knout, quirt, strap

cut

flick, touch up

blackjack, cane, club, cudgel, fustigate

pistol-whip

bang, bop, box, bust, clap, clip, clobber, clout, crack, cuff, hit, knock, lam, paste, punch, slap, slug, smack, smite, sock, spank, swat, swipe, thwack, wallop, whack

bash, baste, bat, batter, beat, belabor, belt, bludgeon, buffet, bung, drub, fib [British], hammer, lace, lambaste (or lambast), lather, lick, mangle, maul, paddle, pelt, pommel, pound, pummel, rough, slate, slog, thresh, thump, tromp, whop (or whap), whup, work over