Damper rhymes with:
camper, gamper, hamper, kamper, pamper, samper, scamper, stamper, tamper, bumper, burkemper, camper, distemper, dumper, gamper, hamper, jumper, kamper, kemper, lumper, mumper, pamper, pomper, samper, scamper, shrimper, simper, smokejumper, stamper, stemper, stumper, swamper, tamper, temper, thumper, tremper, whimper
Damper sounds like:
dambra, dampier, danbury, denboer, denver, dimambro, dimperio, donapria, donofrio, downpour, dudenhoeffer, dumber, dumper, dunbar