rain closet

rain closet

The shower, especially a standalone shower that is not part of a bathtub. There isn't a proper bathroom in the studio apartment, just a toilet and a tiny rain closet. Let me just get in the rain closet to wash all this dirt and grime off before dinner.
See also: closet, rain
Farlex Dictionary of Idioms.

rain closet

n. a shower (bath). P.U. Willy. You need a trip to the rain closet.
See also: closet, rain
McGraw-Hill's Dictionary of American Slang and Colloquial Expressions
See also:
  • shower down
  • take a shower
  • have a shower
  • powder room
  • soap scum
  • be in/out of use
  • be in use
  • in use
  • in want of (something)
  • in want of something