Spillage rhymes with:
pillage, millage, milledge, pillage, acknowledge, arledge, barlage, bramlage, cartlidge, catledge, colledge, college, coolidge, delage, eledge, elledge, foliage, gulledge, hartlage, millage, milledge, pillage, ratledge, routledge, rutledge, tutelage
Spillage sounds like:
sables, sabol's, savalas, scofflaws, scuffles, shapeless, shovels, showplace, shuffles, siebels, sivils, sobil's, sobils, soboleski, sobolewski, sobolik, spellacy, spells, spill's, spills, splash, splashes, splashy, splice, splices, spoilage, spoils, squabbles, subhlok, sublease, suffolk, supplies, supply's, swivels, syphilis