JMdict: 1612970

指きり 【ゆびきり】

  1. [n,vs,vi] pinky swear (i.e. linking little fingers to confirm a promise); pinky promise
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Kanji in this word:

Kanji Meanings On Readings Kun Readings
指 Finger, Point To, Indicate, Put Into, Play (chess), Measure (ruler) シ ゆび, さ.す, -さ.し