smash-up n : a serious collision (especially of motor vehicles) [syn: smash]

accident, appulse, blow, breakdown, breaking up, breakup, brunt, bulldozing, bulling, bump, calamity, cannon, carambole, carom, casualty, cataclysm, catastrophe, cave, cave-in, clash, collapse, collision, concussion, contretemps, crack-up, crash, crump, crunch, debacle, disaster, encounter, grief, hammering, ill hap, impact, impingement, mauling, meeting, misadventure, mischance, misfortune, mishap, nasty blow, onslaught, percussion, pileup, ramming, shipwreck, shock, sideswipe, sledgehammering, smash, smash-up, smashing, staggering blow, thrusting, total loss, tragedy, washout, whomp, wrack, wreck,