crapper

noun4

1. •
   (slang, vulgar) A chamber pot or toilet, particularly (dated) a flush toilet by Thomas Crapper.
2. •
   (slang, vulgar) A lavatory or outhouse.

   • I purchased your magazine for the first and last time. What the hell is it? (..) It wasn't even good reading material for the crapper. — 1994
3. •
   (vulgar, offensive) A rapper, or a performer of rap music.
4. •
   A half-glass of whiskey.