What is undies short for?


Those who either have children or enjoy acting like children may use undies to mean "underwear." This immature abbreviation apparently originated in the year 1906.

Initially, undies was used to refer to only women's underwear. Now, undies can be used to refer to underwear worn by children of any gender. Also, if you are an adult who has no shame, you can use undies to refer to your own or another adult's underwear.


I gotta get some new undies; some of mine are wearing out
Dude, TMI

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Updated October 11, 2021

Undies definition by Slang.net

This page explains what the abbreviation "Undies" means. The definition, example, and related terms listed above have been written and compiled by the Slang.net team.

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