Definitions

1. noun

the practice of writing obscene words or phrases in the margins of books, typically as a form of vandalism or prank

“The librarian discovered that the book had been subjected to scatologia by a group of mischievous teenagers.”

2. noun

a collection of obscene or pornographic writings, often found in private or underground publications

“The police seized a stash of scatologia from a suspect, which was later used as evidence in court.”