Jupin rhymes with:
toupin, trupin, arpin, aspin, backspin, coppin, crespin, crispin, daspin, flippin, galpin, gilpin, halpin, hennepin, jospin, juarez-espin, lapin, ongpin, pepin, peppin, pippin, protropin, ruxpin, somatotropin, steppin', tappin, tippin, toppin, toupin, trupin, turpin, vipin
Jupin sounds like:
jacobean, jacobin, jacobina, jacobine, jaffna, japan, javan, jawbone, jeepney, jobin, jobina, jobyna, josefina, josephina, josephine, jospin, jovan, jovian