じゃんじゃか

adverb

noisily; loudly; with gusto

Describes playing a musical instrument or making sound energetically and without restraint. Often implies a lively, somewhat raucous atmosphere.

• 彼かれはギターをじゃんじゃか弾ひいていた。

  He was strumming the guitar loudly and energetically.

• 祭まつりで太たい鼓こをじゃんじゃか叩たたいた。

  We pounded the drums noisily at the festival.

adverb

on and on; without stopping; relentlessly

Used for doing something continuously, often with a sense of excess or lack of restraint. Can apply to talking, working, spending, etc.

• 彼かの女じょはじゃんじゃかお金かねを使つかう。

  She spends money like there's no tomorrow.

• 仕し事ごとをじゃんじゃか片かた付づけた。

  I plowed through the work nonstop.