From Longman Dictionary of Contemporary Englishscreedscreed /skriːd/ noun [countable] a very long boring piece of writing – used to show disapproval
Examples from the Corpus
screed• At three a.m. she was Jay-in-love-with-Lucy, writing bad poetry or self-indulgent screeds of what daylight sneered at as a journal.• Long political screeds were attached about what the paper should be like, pleading justifications of position and talent. 