scatology

noun

1. (countable, uncountable)The scientific study or chemical analysis of faeces.
2. (countable, uncountable)A filthy epithet.

   “[…] lingo of the streets with its spewed out scatologies and its anti-womanist rhetoric of "hoes and bitches" — all so evocative of life in the ghetto […]”

3. (countable, uncountable)Interest in or obsession with faeces or other excrement.

   “Like James Joyce’s Leopold Bloom in the novel Ulysses (1922), Mozart seemed utterly comfortable with himself, bodily functions, and all.[…] In our view Mozart’s so-called scatology is part of his culture and personality and, as we have argued, intimately connected with his creativity.”

4. (countable, uncountable)Literature, humor, or pornography featuring excrement or excreting.

   “The move to out-and-out scatology in humorous texts for junior readers takes off in the later 1990s, following the overt scatological humor of ground-breaking ‘bum and poo’ picture books for younger readers, such as Holzwarth’s The Little Mole Who Knew It Was None of His Business (1998).”