from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. undergarments, underwear, drawers
- n. breeches, trousers
from the GNU version of the Collaborative International Dictionary of English
- n.pl. The breeches; trousers.
from The Century Dictionary and Cyclopedia
- Trousers or breeches, as an article of dress not to be mentioned in polite circles; inexpressibles.
Victorian Era euphemism, specifically the category of euphemism known as indirection (compare privates, behind, sleep together). First intended meaning was "trousers", attested from 1823. Meaning "underwear" is recorded from 1910. (Wiktionary)