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fink

[fingk]Slang.
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noun
  1. a strikebreaker.
  2. a labor spy.
  3. an informer; stool pigeon.
  4. a contemptible or thoroughly unattractive person.
verb (used without object)
  1. to inform to the police; squeal.
  2. to act as a strikebreaker; scab.
Verb Phrases
  1. fink out,
    1. 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.
    2. to become untrustworthy.

Origin of fink

1900–05, Americanism; compared with German Fink literally, finch, colloquial epithet for an undesirable person, especially an untidy or loose-living one (often in compounds, as Duckfink sycophant, Schmierfink untidy writer); but the transmission of this word to English and the range of meanings of the English word have not been clarified fully
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
British Dictionary definitions for fink out

fink out

verb
  1. (intr, adverb) slang, mainly US to fail to carry something out or through; give up

fink

noun
  1. a strikebreaker; blackleg
  2. an informer, such as one working for the police; spy
  3. an unpleasant, disappointing, or contemptible person
verb
  1. (intr often foll by on) to inform (on someone), as to the police

Word Origin

C20: of uncertain origin
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for fink out

fink

n.

1902, of uncertain origin, possibly from German Fink "a frivolous or dissolute person," originally "finch;" the German word also had a sense of "informer" (cf. stool pigeon). The other theory traces it to Pinks, short for Pinkerton agents, the private police force hired to break up the 1892 Homestead strike. As a verb, 1925 in American English slang. Related: Finked; finking.

Online Etymology Dictionary, © 2010 Douglas Harper