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fink on (someone)
To report someone's misdeeds to an authority figure. The gang was determined to find the traitor who finked on them to the police. How could you fink on me to my parents? Now I'm grounded for a whole month!
slang To abandon someone or something. Primarily heard in US. I can't believe you finked out at the last minute!
fink out on (someone or something)
slang To abandon someone or something. I can't believe you finked out on us at the last minute! They really need your help—don't fink out on them.
1. One who is regarded as a traitor for reporting criminal activity to the police. Primarily heard in US. The gang was determined to find the rat fink who told the police about their illegal activities.
2. An unpleasant person. Mike is such a rat fink that I can't even stand being in the same room as him.
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.
fink on someone
Sl. to inform parents, the authorities, etc. on someone. You're not going to fink on me, are you? Chuck finked on all of us.
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.
1. n. an informer; a stool (pigeon). (see also rat fink.) Taylor has turned into a fink. She can’t be trusted.
2. Go to fink (on someone).
3. n. any strange or undesirable person. You are being such a fink. Stop it!
fink (on someone)
in. to inform on someone. Rocko never finks on his friends.
See fink on someone
fink out (on someone/something)
in. to decide not to cooperate with someone or something (after all). Come on, don’t fink out on us now.
n. an informer. (see also rat.) That guy is nothing but a rat fink. A dirty squealer!
McGraw-Hill's Dictionary of American Slang and Colloquial Expressions Copyright © 2006 by The McGraw-Hill Companies, Inc. All rights reserved.