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slang To abandon someone or something. Primarily heard in US. I can't believe you finked out at the last minute!
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.
fink out (on someone or something)
Sl. to decide not to cooperate with someone or something (after all). Come on, don't fink out on us now. Bob finked out on the plan.
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs. © 2002 by The McGraw-Hill Companies, Inc.
McGraw-Hill's Dictionary of American Slang and Colloquial Expressions Copyright © 2006 by The McGraw-Hill Companies, Inc. All rights reserved.