| 词组 | grass up |
| 释义 | Phr V grass up grasses, grassing, grassed grass on sb British & Australiangrass up sb or grass sb up British & Australian if someone grasses on someone else, they tell the police or someone in authority about something bad that that person has doneHe'd grassed on other members of the band.You wouldn't grass him up, would you? grass sb up • grass up sb BrE informal if someone grasses up a person that they know, they tell people in authority about something illegal or bad that the person has done: When my mum found out about the drugs, she went to the police. She grassed me up. The officer publicly accused his colleagues of racism and was himself accused of grassing up his mates.■ SIMILAR TO: inform on, grass on BrE informal |
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