Here's what rhymes with defuzzify.
high thy vi hi shy sigh defy fi hy thigh vie psi hai cy fy sy thei phi by my why die lie y buy fly sky deny guy tie bi bye chi dye nigh pi pie spy thai certify dei fry ly quae rye sly ty wir awry lye mai muy nai wry belie kai lai luy mei tai wai sty stye turfy slier yuppify apply dry supply try cry rely satisfy modify ply fortify pry ratify tri trie decry pri terrify typify descry edify vilify bonsai deify ossify spry vivify dissatisfy shanghai refortify banzais syllabify reply thereby imply justify nearby hereby specify testify verify butterfly gratify notify quantify underlie alibi amplify diversify nullify pacify samurai beautify pupae solidify termini untie amoebae codify dignify mollify mortify overlie personify ramify acidify aquae mystify stratify stultify triply ultrahigh amebae blowfly horrify misapply petrify revivify stupefy lanai scurfy versify barfly mummify prettify vitrify beatify ripply speechify overbuy dandify identify occupy whereby clarify comply qualify alkali classify signify simplify goodbye purify magnify rectify standby unify disqualify falsify lullaby liquefy objectify resupply demystify detoxify firefly retry calcify emulsify liquify overfly scarify declassify hyperbolae drachmai gentrify solemnify stimuli multiply nuclei exemplify glorify intensify alveoli indemnify crucify oversupply electrify reclassify reunify misidentify oversimplify dragonfly preoccupy cumuli transmogrify