fink out

fink out

vb

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

Thesaurus

fink

noun

Slang. One who gives incriminating information about others:

informant, informer, tattler, tattletale.

Informal: rat, tipster.

Slang: snitch, snitcher, squealer, stoolie, stool pigeon.

verb

Informal. To give incriminating information about others, especially to the authorities:

inform, talk, tattle, tip (off).

Slang: rat, sing, snitch, squeal, stool.

Idiom: blow the whistle.

phrasal verb
fink out

Slang. To abandon a former position or commitment:

back down (or out), renege, retreat.

Slang: cop out.