Here's what rhymes with buttrue.
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 accrue chew cu debut deux flue fu slew untrue 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 gnu slue thew whew phew pursue screw anew renew undue stew subdue taboo undo adieu ado jusqu skew tattoo beaucoup outdo askew imbue outgrew redo halloo valuer endue indue bestrew booboo regrew achoo into review withdrew avenue bamboo canoe ensue construe barbecue eschew revue sinew vnto ballyhoo barbeque bugaboo fondue foreknew zebu kazoo buckaroo muumuu prevue overdrew wazoo atishoo interview revenue overview residue rendezvous retinue caribou overdue overthrew kangaroo shampoo overdo cockatoo honeydew hullabaloo marabou peekaboo overflew overshoe superglue overgrew hitherto misconstrue