Here's what rhymes with cucumbertree.
tree pre ye li plea debris tlie lee ri ry lea yi lii pari prix rhe brie be he we me she t de see three d free p pp b c sea v ve key agree di g tea thee fee knee ne si z bee mi te vii dc flee je ni sie ti wee xi xii xiii ci glee hee hie ki nee pea tc tee wi wie bc dd dy flea gi gli hae ji mea mee ny quay shi shih thi whieh ze alii bailee bb chih dee fea fie gee ghee lhe nae nie pee qi rny sae sci shee spree tiie tke xy zi parolee twee whee degree decree qui ac esprit fc fhe lessee ski xxi xxii xxiii db jubilee kb pc pg rupee sv tp trainee xxxi appellee bt donee dp jt pd quis tb tv xxxii xxxiii bowsprit queerly scree tepee undersea banshee bursae potpourri prithee ranee wormy aurorae epee saree teepee honoree topee puttee sirree tootsie yippee paltrier shoetree http nobody cc trustee disagree xvi xvii cd foresee marquis addressee interviewee referee sd sibi xxvi xxvii apogee appointee ftp hyperbole marquee pensee xxxvi xxxvii goatee retiree settee abscissae bumblebee curie detainee suttee artsy attendee emcee fusee gutsy internee deportee draftee jamboree sudsy whoopee abductee florae footsie kedgeree sultrier wintrier mit devotee exp nominee absentee assignee grantee oversee quelque consignee diastole legatee repartee tympani vendee amphorae filigree oversea amputee manatee timpani calliope monody quinsy returnee axletree colossally dungaree inductee singletree soignee whiffletree whippletree maharanee guarantee bourgeoisie mortgagee guaranty licensee phonology transferee honeybee escapee invitee wannabe chiropody conferee enlistee guarani wannabee franchisee idiosyncrasy