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