Clumpy rhymes with:
lumpy, bumpy, dumpy, frumpy, grumpy, jumpy, lumpy, bumpy, campi, campy, ciampi, dumpy, empey, empie, frumpy, grumpy, jumpy, lampi, lumpy, pompey, rampey, rampy, sampey, skimpy, stimpy, swampy, tempe, wimpee, wimpy
Clumpy sounds like:
clamp, cleanup, climb, clump, collomb, colomb, colombe, colombia, colombo, columba, columbia, columbo, coulombe, culinova