zannLanguage Learning Suite
Rat out
Informal Speech
Used in casual conversation, often among peers or within social groups.

If you rat me out for cutting class, you're not cool.
Negative Connotation
Carries a negative sense, suggesting disloyalty or breaking trust.

I can't believe she'd rat out her own team!
Non-professional Context
Usually inappropriate in formal or professional settings, where 'report' or 'disclose' might be better.

In the office, it's better to report issues than to rat out co-workers.
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