adverb, adverb taking the 'to' particle
noisily; with loud footsteps
Describes the sound or manner of heavy, noisy footsteps, often of multiple people or a single person stomping around.
子供たちがどかどかと階段を駆け上がった。
The children ran noisily up the stairs.
隣の部屋からどかどかと足音が聞こえる。
I can hear loud footsteps from the next room.
adverb, adverb taking the 'to' particle
in a crowd; all together; incessantly
Describes people entering, leaving, or doing something in a large group, often noisily or in a disorderly manner. The 'incessantly' nuance can apply to things coming one after another.
観客がどかどかと会場に入ってきた。
The audience came into the venue in a noisy crowd.
苦情の電話がどかどかとかかってきた。
Complaint calls came in one after another.
Onomatopoeic or mimetic word; the exact derivation is uncertain, but the reduplicated form suggests a sound-symbolic origin imitating heavy, noisy movement.