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paper-train

American  
[pey-per-treyn] / ˈpeɪ pərˌtreɪn /

verb (used with object)

  1. to train (a pet) to defecate or urinate on sheets of disposable paper.

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.