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