更衣室

gēngyīshì
  1. change room; dressing room; locker room
  2. (euphemism) toilet

CEDICT

euphemistic

Entry Composition

1 更衣 gēngyī
  1. to change clothes
  2. to go to the toilet (euphemism)
2 室 shì
  1. room
  2. work unit
  3. grave
  4. scabbard
  5. family or clan
  6. one of the 28 constellations of Chinese astronomy