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