Hullabaloo rhymes with:
ballou, ballou, carilou, chaloux, ballou, bellew, bleu, blew, blue, carilou, chaloux, clue, deblois, flew, flu, flue, glew, glue, leu, lew, lieu, loo, lou, louw, loux, lu, lue, mailloux, plew, plue, slew, unglue, vanlue
Hullabaloo sounds like:
halfhill, helpful, helpfully, hillbilly