Meanings
- pluralplural onlyuncommonPlastic pants that resemble panties.
Babies get real "social security" with the built-in plastic panties. Snaps all the way up both sides (so even Dad's a quick-change artist now!) Wash in a wink, dry in shape.
1951 March 11, “Advertisement”, in Life, page 1542 more examples
Even as infants our clothing displays sexual significance, and our parents are extremely careful that we never are clothed in either dresses or ruffles. For example, while our plastic panties are designed to keep mothers, fathers, and their furniture and friends dry, our parents make absolutely certain that ours are never pink with white ruffles.
1981 February 28, James M. Henslin, Down to Earth Sociology: Introductory Readings, 14 edition, Free Press, →ISBN, page 163I haven't tried to do much toilet training for she is still rather young, however, if she is wearing training panties and puddles it breaks her heart. But if she has a diaper and plastic panties on she doesn't see what she has done and it means nothing to her.
2014 March 4, Deborah Jiang-Stein, Prison Baby: A Memoir, Beacon Press, →ISBN, page 114
Origin
From plastic + panties. Compare earlier rubber panties.
Full word history & related roots →Cite this entry
plastic panties. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/plastic%20panties
“plastic panties.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/plastic%20panties. Accessed November 4, 2026.
WatkinsX Dictionary, s.v. “plastic panties,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/plastic%20panties.
Source: plastic panties on Wiktionary, CC BY-SA 4.0.