Plump rhymes with:
clump, klump, klumpp, lump, lumpp, slump, bump, chump, clump, crump, dump, frump, grump, gump, gumpp, hump, jump, klump, klumpp, kump, lump, lumpp, pump, rump, slump, stump, stumpe, stumpp, sump, thump, trump
Plump sounds like:
palomba, palombi, palombo, palumbo, plainview, plumb