An onomatopoeic adverb expressing violent or forceful beating/striking, or doing something without holding back (doing it vigorously).
彼は机をバシバシ叩いてリズムを取った。
He banged on the desk, keeping rhythm.
上司はミスに対してバシバシ注意するタイプだ。
The boss is the type to scold mistakes harshly and without holding back.
Firmly; resolutely—used to indicate doing something decisively and without hesitation.
彼女は仕事をバシバシ片付けて、定時には帰ってしまった。
She dealt with her work decisively and left on time.
写真をバシバシ撮っていくので、枚数がすぐに増える。
She keeps snapping photos one after another, so the number of shots increases quickly.