すぽり
- 1snugly (into hole, container, etc.) ; tightly (fitting, covering) ; firmly Translated by Jiyomi
- 2with a pop (e.g. a cork being pulled out) ; with a plop ; (fall) straight Translated by Jiyomi
adverb (fukushi) · adverb taking the 'to' particle
JMdict entry 2833175. Source and licence.