ドカン

adverb, adverb taking the 'to' particle

with a bang; with a crash

Mimetic word for a sudden loud explosive or crashing sound, often used with と or as an adverb.

• ドアがドカンと閉しまった。

  The door slammed shut with a bang.

• 花はな火びがドカンと打うち上あがった。

  The firework shot up with a bang.