Here's what rhymes with flowuh.
to who you do two new too due knew du u coup qu shoe zu dew lieu shew su sue tu vous chew deux fu lu rue zoo bu hu ju jus ku loo mu nu peu pu seu shu sou vu woo yew yu boo chou chu coo cou doo ewe feu gu ru shou thu tue vou wou wu goo moo pooh poo shoo gnu roux thew whew through few true view blue drew grew que crew threw blew flew q screw anew clue cue glue hue queue renew cu flue slew stew adieu ado brew flu pew skew thru beaucoup fue hew mieux shrew sprue tzu vnto vue clew mew redo strew halloo spew valuer foreknew zebu slue phew achoo into review pursue avenue canoe undue accrue ensue subdue taboo undo overdue piu tattoo eschew outdo revue shampoo sinew askew overdo kazoo overshoe wazoo booboo regrew revenue hitherto overview residue withdrew bamboo debut retinue untrue caribou jusqu overthrew imbue outgrew ballyhoo honeydew endue fondue indue marabou bestrew muumuu overflew prevue overdrew overgrew atishoo rendezvous construe kangaroo cockatoo hullabaloo bugaboo peekaboo buckaroo superglue interview barbecue barbeque misconstrue