ど
 
ん
 
ど
 
ん

adverb, adverb taking the と particle

Onomatopoeic or mimetic word.
  1. drumming (noise), beating, pounding, banging, booming, stamping.
  2. rapidly, quickly, steadily.
  3. continuously, one after the other, in succession.

Variations

Pronunciation Kanji Kana Is Common
 
ど
 
ん
 
ど
 
ん
どんどん ✔
 
ド
 
ン
 
ド
 
ン
ドンドン