Flailing rhymes with:
ailing, assailing, ayling, bailing, baling, curtailing, derailing, detailing, emailing, entailing, failing, grayling, hailing, impaling, inhaling, jailing, mailing, nailing, prevailing, railing, regaling, sailing, saling, scaling, surveilling, tailing, trailing, unavailing, unfailing, unveiling, veiling, wailing, whaling
Flailing sounds like:
failing, failings, falanga, falling, feeling, feelings, fehling, felines, fellenz, felling, felonies, felonious, felons, filene's, filing, filings, filinski, filling, fillings, film's, filming, films, flamenco, flames, flaming, flamingo, flamingos, flammang, flange, flanges, flank, flanks, fleeing, fleming, fleming's, flemings, flemish, flemming, flemons, flewelling, flimsy, flinch, fling, flings, flink, flounce, flounces, flowing, fluency, flumes, flummox, flung, flunk, flunks, flying, foaling, foiling, following, followings, fooling, fouling, foulness, fueling, fuelling, fullness