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