grass on
(UK, slang) To betray by informing on.
Definitions
(UK, slang) To betray by informing on.
What I was pissed off about, though, was him telling everyone that he'd only grassed on me because I'd grassed on him first, which was a total lie.
“I needed stitches after an incident with grass on the allotment. Actual growing grass, I mean. Maybe not quite domestic? Details on request!”
— Bluesky· May 2026
Comments
Have a better definition?
Add your own interpretation of "grass on".
🗺️About Regional & Other slang
Regional slang from around the English-speaking world — British, Australian, Irish, Caribbean, Nigerian, Filipino, AAVE, and the hyphenated-English dialects that make the internet sound local.
See all Regional & Other slang on Slangora.
Tags
Other words near "grass on" (G)
Browse all slang words starting with G.
Related terms
People also read
Semantically related
- grass up87%
(UK, slang) To betray by informing on.
- grasser76%
(British, slang) A grass; an informer.
- go to grass67%
(slang) To take a violent fall, especially of a boxer.
- snitch65%
(slang, intransitive) To inform on someone, especially in betrayal of others.
- one's ass is grass65%
(US, slang) One is doomed (used as a threat).