Here's what rhymes with gtatu.
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 peekaboo 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 spew bugaboo zebu kazoo slue phew wazoo achoo atishoo hitherto residue screw avenue renew ensue retinue jusqu skew askew imbue outgrew cockatoo halloo valuer endue fondue foreknew indue marabou bestrew buckaroo overshoe overdrew regrew review interview revenue overview withdrew rendezvous caribou construe overthrew barbecue revue sinew ballyhoo honeydew barbeque muumuu overflew prevue superglue overgrew kangaroo hullabaloo misconstrue