cacology

cacology

(kəˈkɒlədʒɪ)
n
(Phonetics & Phonology) a bad choice of words; faulty speech
[C17 (in the sense: ill report): from Greek kakologia]

cacology

1. a defectively produced speech.
2. socially unacceptable enunciation.
3. nonconformist pronunciation.
See also: Pronunciation, Speech