Lumper rhymes with:
bumper, dumper, jumper, mumper, stumper, thumper, bumper, burkemper, camper, damper, distemper, dumper, gamper, hamper, jumper, kamper, kemper, mumper, pamper, pomper, samper, scamper, shrimper, simper, smokejumper, stamper, stemper, stumper, swamper, tamper, temper, thumper, tremper, whimper
Lumper sounds like:
laimbeer, lambreau, lambro, lamphear, lamphere, lamphier, lamprey, lanfear, lanphear, lanpher, lanphere, lanphier, lehenbauer, leinweber, limber, lineberry, lineweaver, lumbar, lumber, lumbra, lumpur