flapping; rattling; fluttering
(running) with a clatter; noisily; thrashing (around); floundering; flailing
(falling) one after another; in quick succession
busily; hurriedly; in a fluster; in a rush; rushing around; bustling about; scurrying
quickly; briskly; with dispatch
motorcycle; three-wheeler truck
鳥がばたばた羽を動かしている。
The bird is flapping its wings
今日はばたばた忙しい一日だった。
Today was a hectic busy day
窓がばたばた音を立てている。
The window is rattling