don-don
Heavy, rhythmic pounding — drums beating, someone knocking forcefully on a door, or things progressing rapidly.
💡Festival drums playing — 'The taiko drums were booming don-don.'
太鼓がどんどん鳴り響いた。
The taiko drums boomed don-don.
Someone was ___ knocking on the door in the middle of the night.
夜中にドアを○○叩く音がした。