THESAURUS
whack
approach, assay, attempt, bang, bash, bat, beating, belt, bid, biff, blow, bonk, bout, box, box the ears, buffet, bump, burst, bust, catch, chance, chop, clap, clash, clip, clobber, clout, clump, coldcock, crack, crash, crump, cuff, cut, dash, deal, deal a blow, deck, dig, ding, dint, drub, drubbing, drumming, effort, endeavor, essay, experiment, fetch, fetch a blow, flap, fling, flop, fusillade, gambit, go, hit, hit a clip, inning, innings, jab, knock, knock cold, knock down, knock out, let have it, lick, move, offer, opportunity, paste, pelt, place, plunk, poke, pop, pound, punch, rap, relief, report, round, say, shot, slam, slap, slap the face, slat, slog, slug, smack, smash, smite, snap, soak, sock, spell, splat, stab, stagger, step, strike, strike at, stroke, strong bid, swap, swat, swing, swipe, tap, tattoo, tentative, thump, thwack, time, time at bat, token punishment, trial, trial and error, try, turn, undertaking, wallop, wham, whap, whirl, whomp, whop, yerk
ROGET THESAURUS
whack
Impulse
N
impulse, sudden thought, impromptu, improvisation, inspiration, flash, spurt, improvisatore, creature of impulse, extemporaneous, impulsive, indeliberate, snap, improvised, improvisate, improvisatory, unpremeditated, unmeditated, improvise, unprompted, unguided, natural, unguarded, spontaneous, instinctive, extempore, extemporaneously, offhand, impromptu, a limproviste, improviso, on the spur of the moment, on the spur of the occasion, impulse, impulsion, impetus, momentum, push, pulsion, thrust, shove, jog, jolt, brunt, booming, boost, throw, explosion, propulsion, percussion, concussion, collision, occursion, clash, encounter, cannon, carambole, appulse, shock, crash, bump, impact, elan, charge, beating, blow, dint, stroke, knock, tap, rap, slap, smack, pat, dab, fillip, slam, bang, hit,
whack, thwack, cuff, squash, dowse, swap, whap, punch, thump, pelt, kick, punce, calcitration, ruade, arietation, cut, thrust, lunge, yerk, carom, carrom, clip, jab, plug, sidewinder, sidewipe, sideswipe, hammer, sledge hammer, mall, maul, mallet, flail, ram, rammer, battering ram, monkey, pile-driving engine, punch, bat, cant hook, cudgel, ax, dynamics, seismometer, accelerometer, earthquake detector, impelling, impulsive, impellent, booming, dynamic, dynamical, impelled, a hit, a very palpable hit.
VB
flash on the mind, say what comes uppermost, improvise, extemporize, give an impetus, impel, push, start, give a start to, set going, drive, urge, boom, thrust, prod, foin, cant, elbow, shoulder, jostle, justle, hustle, hurtle, shove, jog, jolt, encounter, run against, bump against, butt against, knock one's head against, run one's head against, impinge, boost, bunt, carom, clip y, fan, fan out, jab, plug, strike, knock, hit, tap, rap, slap, flap, dab, pat, thump, beat, blow, bang, slam, dash, punch, thwack,
whack, hit hard, strike hard, swap, batter, dowse, baste, pelt, patter, buffet, belabor, fetch one a blow, poke at, pink, lunge, yerk, kick, calcitrate, butt, strike at, whip, come into a collision, enter into collision, collide, sideswipe, foul, fall foul of, run foul of, telescope, throw.
Snap
N
snap, rapping, decrepitation, crepitation, report, thud, burst, explosion, blast, boom, discharge, detonation, firing, salvo, volley, squib, cracker, firecracker, cherry bomb, M, gun, cap, cap gun, popgun, implosion, bomb burst, atomic explosion, nuclear explosion (arms), gunpowder, dynamite, gun cotton, nitroglycerine, nitrocellulose, plastic explosive, plastique, TNT, cordite, trinitrotoluene, picric acid, picrates, mercury fulminate (arms),
whack, wham, pow, rapping, Int, kaboom!, whamo!, Heewhack!, pow!.
VB
rap, snap, tap, knock, ping, click, clash, crack, crackle, crash, pop, slam, bang, blast, boom, clap, clang, clack,
whack, wham, brustle, burst on the ear, crepitate, rump, blow up, blow, detonate.