without a stitch on

without a stitch on

Completely nude; having no articles of clothing on whatsoever. As I walked into the kitchen, I saw my roommate by the counter without a stitch on. I nearly dropped my mug of tea out of shock! When you were a toddler, we used to let you run around the beach without a stitch on.
See also: on, stitch, without
Farlex Dictionary of Idioms.

without a stitch on

Naked, as in They let their baby run around outside without a stitch on. A related phrase is not have a stitch on. These expressions use stitch in the sense of "a piece of clothing," a usage dating from the early 1800s.
See also: on, stitch, without
The American Heritage® Dictionary of Idioms by Christine Ammer.
See also:
  • without a stitch of clothes (on)
  • without a stitch of clothing (on)
  • not have a stitch of clothes
  • not have a stitch of clothes (one)
  • not have a stitch of clothing (one)
  • with not a stitch of clothing (on)
  • with not a stitch of clothes (on)
  • with not a stitch on
  • not have a stitch on
  • as naked as the day (one) was born