adverb, adverb taking the 'to' particle
with a slip; with a slide
Describes a smooth, often unintentional sliding or slipping movement. Commonly used with verbs like 滑る (to slip) or 落ちる (to fall).
足がずるりと滑って、階段から落ちそうになった。
My foot slipped and I almost fell down the stairs.
彼は椅子からずるりと落ちた。
He slid off the chair.