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