crapper
n. UK //kɹˈæpɐ// crap·per
From crap + -er, although possibly repopularized by barracks employing Thomas Crapper's plumbing fixtures used during the First World War. The occupational surname Crapper derives from a dialectal variant of cropper (“harvester of crops, farmer”).
Unknown.
Blend of crap + rapper, implying that rap music is inferior.