adverb
Colloquial, onomatopoeic adverb for doing something very quickly, lightly, or in a short burst. Often implies a casual, effortless action.
See also: ぱぱっと
ぱぱぱっと部屋を片付けた。
I tidied up the room in a flash.
ぱぱぱっと説明してくれた。
He gave me a quick, brief explanation.