Don't be found with 〜てはだめだ

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While telling ghost stories at night, Rize relays the tale from her childhood, of a frightened servant walking home one night. Rize says she herself was the culprit, practicing sneaking around and crawling through the bushes.

バラしちゃだめじゃん!!」
Don't be found!!”

Key Points

1ちゃ contracts ては
  • バラしてはだめ becomes バラしちゃだめ in casual speech.
2じゃん adds an exasperated reminder
  • じゃん contracts じゃない and has the force of “you know you shouldn’t!” rather than adding a second prohibition.
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