Here's what rhymes with muoo.
oo ou ooo eu woo oooo ooooo wou wu ooh whew 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 yew yu boo chou chu coo cou doo ewe feu gu mieux ru shou thu tue vou goo mew moo pooh poo shoo gnu roux thew into through few true view blue drew grew que crew threw blew flew q anew clue cue glue hue queue undue cu ensue flue slew stew undo adieu ado brew flu pew thru fue hew shrew tzu vnto vue clew slue phew wazoo achoo pursue screw bamboo canoe renew accrue taboo untrue piu skew tattoo beaucoup eschew outdo shampoo sinew sprue imbue redo strew halloo spew valuer endue zebu indue kazoo muumuu booboo review withdrew avenue debut subdue jusqu overdue kangaroo revue askew outgrew overdo honeydew fondue foreknew marabou overshoe regrew atishoo interview revenue hitherto overview residue rendezvous retinue caribou construe overthrew ballyhoo cockatoo bugaboo peekaboo bestrew buckaroo overflew prevue overdrew overgrew superglue barbecue hullabaloo barbeque misconstrue