boyshorts

• boy shorts
• boy-shorts

From boy +‎ shorts.

boyshorts pl (plural only)

1. A female undergarment that covers the hips like a pair of shorts.
   • 2003, Claudia Wallis, "The thing about thongs", Time, 6 Oct 03:

     The only viable alternative, one that my daughter favored, was an item called boyshorts, a low-riding pair of short shorts loosely, or should I say tightly, based on Britney's stagewear.

   • 2008, Ada Edemariam, "The rise of pants campaigns", The Guardian, 8 Apr 08:

     This time round BarelyPolitical.com has got in on the act, selling skimpy red boy-shorts with "OBAMA" written in big white lettering across the back.