big-girl pants (English, noun)
expansion: big-girl pants pl (plural only)
Senses:
glosses: Pull-up underwear worn by a girl during and after toilet training, as contrasted to the diapers worn during infancy.
tags: informal
plural
plural-only
glosses: A notional pair of trousers or underwear worn by a female when acting maturely.
tags: figuratively
informal
plural
plural-only
Forms:
form: big girl pants
tags: alternative