jack shit


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jack shit

n. Vulgar Slang
A small or worthless amount: Those guys can't do jack shit.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

jack′ shit`


n. Vulgar Slang.
jack (def. 13).
[1965–70]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
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