As a proper noun crapper
is , variant of cropper ( "a cropper").
As a noun trapper is
one who traps animals; one who makes a business of trapping animals for their furs.
crapper
English
Noun
(
en noun)
(dated) A water closet containing a flushable toilet, especially a toilet fixture identified "T. Crapper", a well known Victorian-era English engineer and plumbing installer, .
(slang) A flush toilet, a commode.
A privy, an outhouse.
Adjective
(head)
(crap)
trapper
English
(Animal trapping)
Noun
(
en noun)
One who traps animals; one who makes a business of trapping animals for their furs.
A boy who opens and shuts a trapdoor in a gallery or level.
Ornamental covering for a horse. See trapping/caparison.