Trupin rhymes with:
jupin, toupin, arpin, aspin, backspin, coppin, crespin, crispin, daspin, flippin, galpin, gilpin, halpin, hennepin, jospin, juarez-espin, jupin, lapin, ongpin, pepin, peppin, pippin, protropin, ruxpin, somatotropin, steppin', tappin, tippin, toppin, toupin, turpin, vipin
Trupin sounds like:
tarpon, tarvin, terrebonne, thereupon, trapani, trevino, tribune, tropeano, trupiano, tryphena, turban, turben, turbin, turbine, turbinen, turbofan, turpen, turpin