Afterthought rhymes with:
aforethought, aeroflot, aforethought, alcott, apricot, aquanaut, ararat, ascot, astronaut, aucott, aydelotte, barakat, boycott, buckshot, camelot, checkerspot, crackpot, croat, earshot, endicott, eyespot, feedlot, flowerpot, grapeshot, gunshot, helfgott, hot-shot, hotshot, huguenot, inkblot, jackpot, kennecott, kilowatt, lancelot, launcelot, longshot, loquat, mallinckrodt, megawatt, ocelot, overshot, oviatt, poinot, potshot, robot, scattershot, slingshot, snapshot, sunspot, superdot, teapot, topknot, upshot, westcott, whatnot, woodlot