Mervyn's rhymes with:
arvin's, bevins, bivins, blevins, cavins, devins, evins, galvin's, givins, havins, hoogovens, ivins, kelvin's, kevin's, kevins, leavins, levin's, levins, lovins, nevin's, nevins, ravin's, savin's, spalvins
Mervyn's sounds like:
marvin's, merabank, morphing, morphonios