grass on sb
UK slang— phrasal verb with grass uk/ɡrɑːs/us/ɡræs/verb
If a person grasses on someone else, they tell the police or someone in authority about something bad that that person has done:
Dan grassed on them to the local police.
Thesaurus: synonyms and related words
Revealing secrets & becoming known
- (the) word is/gets out idiom
- bare
- be the talk of the town idiom
- break cover idiom
- cat
- dob sb in
- fink
- get around (somewhere)
- give sth away
- King's evidence
- leak
- let the cat out of the bag idiom
- open your heart to someone idiom
- sneak
- spill the beans idiom
- take the wraps off sth idiom
- tell on sb
- tongues wagging idiom
- turn
- unmask
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