cacography

noun3

1. •
   Bad spelling or punctuation, especially unintuitive spellings considered as a feature of a whole language or dialect.

   • A phrase exhibits proofs of cacography, when the accents are misplaced, forgotten, or used erroneously. — 1846
2. •
   Poor or illegible handwriting.

   • Many illegible letters is the sign of disorder, and the illegibility of Greeley's cacography has furnished numberless anecdotes. — 1904
3. •
   Deliberate comic misspelling; malapropism.

   • The soul of dialect is cacography, the deliberate misspelling of words for comic effect, which is the written equivalent of the malapropism. — 2003