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[rat-fingk] /ˈrætˌfɪŋk/
noun, Slang.
fink (defs 3, 4).
Origin of ratfink
1960-65; rat + fink Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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British Dictionary definitions for rat fink


(slang, mainly US & Canadian) a contemptible or undesirable person
Word Origin
C20: from rat + fink
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
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Word Origin and History for rat fink

also ratfink, 1963, teen slang, see rat (n.) + fink (n.). Popularized by, and perhaps coined by, U.S. custom car builder Ed "Big Daddy" Roth (1932-2001), who made a hot-rod comic character of it, supposedly to lampoon Mickey Mouse.

Online Etymology Dictionary, © 2010 Douglas Harper
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Slang definitions & phrases for rat fink

rat fink


: the rat-fink Eastern press

noun phrase

A treacherous and disgusting person; bastard, shitheel: that rat-fink Danny's kid (1963+ Teenagers)

[perhaps originally fr labor-union use, since both terms mean ''scab'']

The Dictionary of American Slang, Fourth Edition by Barbara Ann Kipfer, PhD. and Robert L. Chapman, Ph.D.
Copyright (C) 2007 by HarperCollins Publishers.
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