English · Phrasal verb Attested

rat on

In real, traceable use. Part of the curated seed collection; community review is coming.

Both English Tiếng Việt

Meaning · English

To tattle, squeal about (someone)

Nghĩa · Tiếng Việt

đồn thổi, nói xấu

Machine-translated — suggest a fix

Where it’s used: Used American English

Who you protecting, you dumb asshole? A stoolie who rats on his own friends?

Usage example from English Wiktionary (CC BY-SA 4.0, retrieved 2026-07-30)

Sources & notes

Adapted from English Wiktionary (CC BY-SA 4.0, retrieved 2026-07-30 via kaikki.org).

Common questions

What does “rat on” mean?

To tattle, squeal about (someone)

Is “rat on” formal or informal?

No register label has been reviewed yet — treat it as neutral and check the usage notes above.

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