big-boy pants

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big-boy pants

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From big boy.

noun big boy pants

  1. informal, plural, plural only Pull-up underwear worn by a boy during and after toilet training, as contrasted to the diapers worn during infancy. Taking the baby from Kidd she snatched the screaming Davey by the wrist and half-carried him up the stairs yelling, "You wanna wear big-boy pants? Big boys wear big-boy pants, but big boys use the potty!"
  2. figuratively, informal, plural, plural only A notional pair of trousers or underwear worn by a male when acting maturely. If Horwitz is planning on running for office again in the future (and it certainly looks that way), perhaps it's time he put on his big-boy pants and engage in civil discourse.

    Similar: big-boy britches · Opposite: bitchy pants, grumpy pants, scaredy pants

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MLA

"big-boy pants." Wiktionary, via Micwyn, micwyn.com/word/big-boy%20pants. Accessed 6 Nov. 2026.

APA

big-boy pants. (n.d.). In Wiktionary, via Micwyn. Retrieved November 6, 2026, from https://micwyn.com/word/big-boy%20pants

Chicago

"big-boy pants." Wiktionary, via Micwyn. Accessed November 6, 2026. https://micwyn.com/word/big-boy%20pants.

BibTeX
@misc{big_boy_pants_2026,
  title = {big-boy pants},
  howpublished = {Wiktionary, via Micwyn},
  year = {2026},
  url = {https://micwyn.com/word/big-boy%20pants},
  urldate = {2026-11-06}
}