ちゃう

ちゃう
auxiliary
to end up doing (casual contraction)
informalcolloquialcolloquialgrammaticalemotion
See also: 〜てしまう (standard form)
1. to end up doing; to completely do
casual contraction of てしまう (te-shimau); expresses completion of an action, often with a sense of regret, finality, or doing something unintentionally
食(た)べちゃった。
I ended up eating it (all).
また寝坊(ねぼう)しちゃった。
I overslept again.
秘密(ひみつ)を言(い)っちゃダメだよ。
Don't go telling the secret.

Casual contraction

ちゃう is the casual spoken contraction of てしまう:

  • て + しまう → ちゃう
  • で + しまう → じゃう

Usage

Register

Casual speech only. Use てしまう / てしまいました in polite/formal contexts.

general
Added 2026.1.28 20:27 · Revised 2026.9.2 13:01
08500/08784_chau