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