- a very slim person or thing.；long, narrow trousers.
noun: slim jim, plural noun: slim jims
- 1. informal a very slim person or thing.
- ▪ informal long, narrow trousers.
- ▪ informal a long, thin variety of smoked sausage.
- ▪ informal a long flexible metal strip with a hooked end, used to unlock a car door without using a key.