Northrup's rhymes with:
northrop's, northrop's, northrop's, northrop's, winthrop's, europe's, kladstrup's, northrop's, winthrop's, billups, bishop's, bishops, breakups, develops, ejup's, envelops, europe's, gossips, hiccoughs, hiccups, juleps, kladstrup's, lookups, matchups, mcphillips, mixups, northrop's, philip's, philips, scallops, stirrups, syrups, tulips, turnips, wallops, winthrop's, worships