grass up

English

Etymology

From grass (“informer”)[1] + up.

Pronunciation

  • Audio (General Australian):(file)

Verb

grass up (third-person singular simple present grasses up, present participle grassing up, simple past and past participle grassed up)

  1. (UK, slang) To betray by informing on.
    • 1999, Angela Devlin, Bob Turney, Going Straight: After Crime and Punishment, →ISBN:
      My sister grassed me up to the caretaker! She thought she was doing me a favour — by grassing me up she was sure he'd let me off.

Synonyms

References

  1. ^ The New Partridge Dictionary of Slang →ISBN
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