Upper-Intermediate 💬 Idioms & Phrasal Verbs · #158 of 182

Idiom: On Thin Ice

in a risky situation

Examples

  • You're on thin ice with the boss.

Key rules

  • On thin ice means in a risky situation where one mistake could cause trouble
  • It is informal and used with "be" or "be on thin ice with someone"
  • It is common for people in trouble with a boss or teacher
  • The phrase uses "on", not "in"

Common mistakes

  • You're in thin ice → You're on thin ice
💡 Tip: Use it to warn someone that they have already made mistakes.
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