Here's what rhymes with ooooooo.
oo ou ooo eu oooo ooooo ooh 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 anew clue cue glue hue queue cu flue slew stew adieu ado brew flu pew thru fue hew mieux shrew tzu vue clew mew slue phew achoo into pursue screw canoe renew undue accrue ensue taboo undo piu skew tattoo beaucoup eschew outdo sprue vnto redo strew halloo spew valuer zebu kazoo wazoo booboo review avenue bamboo debut subdue untrue jusqu overdue revue shampoo sinew askew imbue outgrew overdo endue foreknew indue muumuu overshoe regrew atishoo revenue hitherto overview residue withdrew retinue caribou overthrew kangaroo ballyhoo cockatoo honeydew bugaboo fondue marabou peekaboo bestrew buckaroo overflew prevue overdrew overgrew interview rendezvous construe superglue barbecue hullabaloo barbeque misconstrue