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poop 1 (pp)
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n.
1. An enclosed superstructure at the stern of a ship.
2. A poop deck.
tr.v. pooped, poop·ing, poops
1. To break over the stern of (a ship). Used of a wave.
2. To take (a wave) over the stern.

[Middle English poupe, from Old French, from Vuglar Latin *puppa, alteration (possibly influenced by Latin prōra, prow) of Latin puppis, stern, poop, of unknown origin.]

The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2019 by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
 
poop 2 (pp)
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tr.v. pooped, poop·ing, poops
Slang
To cause to become fatigued; tire: "Many people stop here, pooped by the short, steep climb" (Sierra Club Guides to the National Parks).
Phrasal Verb:
poop out Slang
1. To quit because of exhaustion: poop out of a race.
2. To decide not to participate, especially at the last moment.

[Origin unknown.]

The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2019 by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
 
poop 3 (pp)
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n.
Slang
Inside information: She gave me all the poop on the company party.

[Origin unknown.]

The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2019 by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
 
poop 4 (pp)
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n.
Slang
A person regarded as very disagreeable.

[Perhaps short for NINCOMPOOP.]

The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2019 by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
 
poop 5 (pp) Informal
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n.
Excrement.
intr.v. pooped, poop·ing, poops
v.intr.
To defecate.
v.tr.
To defecate in (one's clothes or bed, for example).

[Possibly from obsolete poop, to break wind, from Middle English poupen, to blow a horn, toot, of imitative origin.]

The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2019 by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
 

Indo-European & Semitic Roots Appendices

    Thousands of entries in the dictionary include etymologies that trace their origins back to reconstructed proto-languages. You can obtain more information about these forms in our online appendices:

    Indo-European Roots

    Semitic Roots

    The Indo-European appendix covers nearly half of the Indo-European roots that have left their mark on English words. A more complete treatment of Indo-European roots and the English words derived from them is available in our Dictionary of Indo-European Roots.

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