A mimetic adverb meaning nimbly, lightly, or gracefully; usually used with 'to' and emphasizes quick or delicate movement.
彼女はひらりと舞台に現れ、観客の目を引いた。
She appeared on stage with a graceful flutter and caught the audience's attention.
子猫がひらりと跳ねて、窓辺に飛び乗った。
The kitten leapt nimbly and jumped onto the windowsill.
彼はひらりとかわしてボールを奪った。
He dodged lightly and snatched the ball.
着物の裾が風にひらりと揺れた。
The hem of her kimono fluttered lightly in the wind.