Slang Dictionary

fill or kill definition

and FOK
  1. phr.
    a broker's notation advising the stock exchange to fill a stock order or kill it. (The abbreviation is an initialism. Securities markets.) : Get rid of this order. It was fill or kill, and it should have been killed yesterday.
Dictionary of American Slang and Colloquial Expressions by Richard A. Spears.Fourth Edition.
Copyright 2007. Published by McGraw-Hill Education.
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American Heritage
Abbreviations & Acronyms
fill or kill order
The American Heritage® Abbreviations Dictionary, Third Edition
Copyright © 2005 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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