noun which may take the genitive case particle 'no', noun
Used as a no-adjective or noun to describe something of the highest quality or degree. Often appears in phrases like とびっきりの～.
See also: 飛び切り (とびきり)
今日はとびっきりの笑顔を見せてくれた。
Today she gave me her very best smile.
この店のラーメンはとびっきりだ。
The ramen at this shop is top-notch.
noun, adverb
exceptionally; extraordinarily; by far
Adverbial use meaning 'to an exceptional degree'. Can modify adjectives or verbs, often with a nuance of standing out from the rest.
See also: 飛び切り (とびきり)
彼はとびっきり足が速い。
He is exceptionally fast on his feet.
このケーキはとびっきり甘い。
This cake is extraordinarily sweet.
Derived from the verb 飛び切る (とびきる, 'to jump and cut' or 'to be outstanding'), with the geminate consonant っ adding emphasis. The exact historical development is uncertain, but it is related to the idea of something that stands out or is exceptional.