Definition of undershorts in English:

undershorts

plural noun

North American
  • Underpants, especially those worn by men or boys.

    • ‘Wandering the streets wearing only his undershorts and trying to find help, he is spotted by two young women who try to help him.’
    • ‘I've slept in my undershorts, but I was too tired to change out of my shirt last night.’

Pronunciation

undershorts

/ˈəndərˌSHôrts/