Guffaws rhymes with:
faus, applause, baus, because, brause, claus, claus', clause, claws, daus, dawes, daws, draus, draws, faus, flaws, gaus, gause, gauze, glaus, gnaws, hawes, haws, inlaws, jaws, kaus, knaus, laidlaw's, law's, lawes, laws, macaws, maus, mccaw's, naus, ocaw's, pause, paws, prause, saus, sause, saws, shaw's, sias, straws, tawes, thaws, waugh's, withdraws
Guffaws sounds like:
gaffes, gap's, gaps, gasps, gebbie's, gibas, gibb's, gibbs, gibbs's, gibes, giveaways, giveback, givebacks, gives, gobs, goofs, goosefish, gopac, gopac's, gossips, govpx, govs, gozofsky, guavas, guba's, guppies, gypsies, gypsy