Spelunk rhymes with:
blunck, blunk, clunk, flunk, klunk, plunk, blunck, blunk, brunk, brunke, bunk, bunke, chunk, clunk, crunk, debunk, drunk, dunc, dunk, finunc, flunk, funck, funk, funke, hunk, hunke, juhnke, junk, klunk, kuhnke, monk, munk, plunk, punk, ruhnke, runck, runk, schmunk, schunk, shrunk, shunk, skunk, spunk, strunk, stunk, sunk, trunk, vandunk, yunk
Spelunk sounds like:
sapling, saplings, scuffling, sephlon's, shoveling, shuffling, sibling, siblings, spalink, spelling, spelling's, spellings, spellman's, spelunks, spilling, splenic, spoiling, squabbling, supplying, swiveling