Guffin rhymes with:
buffin, duffin, ruffin, alfin, alphin, buffin, chaffin, chafin, chalfin, coffin, cyrofin, daffin, dauphin, delfin, diffin, duffin, dystrophin, elfin, endorphin, gaffin, giffin, goffin, golphin, griffin, hanafin, hanifin, hannifin, kniffin, laffin, morfin, murfin, myotrophin, olefin, polyolefin, rofin, ruffin, sarafin, serafin, serfin, superfon, sutfin, sutphin, threadfin, tiffin, woodfin
Guffin sounds like:
gabon, gaffin, gaffney, gaufman, gauvain, gauvin, gavan, gaven, gavin, geffen, gibbon, gibboney, gibian, gibney, giboney, giffen, giffin, giovanni, giovannini, giovannoni, givan, given, givhan, givin', gobain, goben, gobin, goffin, goffman, goffney, govan, govoni