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