Here's what rhymes with karoo.
to who you do two new too due knew du u coup qu shoe zu anew dew lieu shew su sue tu vous chew deux fu lu rue zoo adieu ado 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 pursue threw blew flew q canoe clue cue glue hue queue undue accrue cu flue slew stew taboo undo brew flu pew tattoo thru eschew fue hew mieux shrew tzu vue clew mew kazoo slue phew wazoo achoo into revenue hitherto residue screw avenue bamboo renew ensue retinue subdue untrue caribou overdue piu skew beaucoup kangaroo outdo shampoo sinew sprue vnto askew overdo redo strew cockatoo halloo spew valuer endue zebu indue marabou buckaroo overshoe booboo regrew atishoo review interview overview debut jusqu overthrew revue imbue outgrew bugaboo fondue foreknew peekaboo muumuu overflew overdrew overgrew withdrew construe ballyhoo honeydew bestrew prevue superglue rendezvous hullabaloo barbecue barbeque misconstrue