Here's what rhymes with expolio.
polio oleo no so know go though low show co row tho fo foe ho lo bo doe dough mo po ro toe wo woe folio stereo tow yo beau ceux faut goe hoe jo ko sew soe vo beaux cho dau mow noe roe sho yeux zo rho whoa doh resew although ago flow ratio blow grow radio slow snow throw pro glow quo studio audio fro crow patio thro bio uno floe rodeo spatio topos tuo bro stow throe trow sloe foreknow regrow kayo pekoe borzoi romeo tallyho schmo schmoe below embryo plateau bestow chateau hello portico forego forgo nouveau propos tableau aglow aliquot cameo dicho tableaux chateaux dunno plateaux trousseau adagio chapeau kapok tarot turbot deathblow bandeau gateau chapeaux gateaux trousseaux overthrow portfolio buffalo overflow calico dynamo vertigo apropos domino escrow outgrow siglo afterglow piccolo pistachio overgrow matzoh fatso mustachio moustachio undergo indigo bungalow politico medico mistletoe presidio oregano braggadocio undertow pompano microdot archipelago impresario pianissimo generalissimo