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