—n. 1. a strikebreaker.
2. a labor spy.
3. an informer; stool pigeon.
4. a contemptible or thoroughly unattractive person.
—v.i. 1. to inform to the police; squeal.
2. to act as a strikebreaker; scab.
3. fink out, a. to withdraw from or refuse to support a project, activity, scheme, etc.; renege: He said he'd lend me his motorcycle, but he finked out. b. to become untrustworthy.