Thumper rhymes with:
bumper, dumper, jumper, lumper, mumper, stumper, bumper, burkemper, camper, damper, distemper, dumper, gamper, hamper, jumper, kamper, kemper, lumper, mumper, pamper, pomper, samper, scamper, shrimper, simper, smokejumper, stamper, stemper, stumper, swamper, tamper, temper, tremper, whimper
Thumper sounds like:
tamburo, tamburri, tamburro, tamper, temper, tempera, temporary, tempore, timber, timbre