fink out


Also found in: Idioms.

fink out

vb
(intr, adverb) slang chiefly US to fail to carry something out or through; give up
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fink

noun
Slang. One who gives incriminating information about others:
Informal: rat, tipster.
verb
Informal. To give incriminating information about others, especially to the authorities:
inform, talk, tattle, tip (off).
Slang: rat, sing, snitch, squeal, stool.
phrasal verb
fink out
Slang. To abandon a former position or commitment:
Slang: cop out.