I am looking for a word to reflect what a novice author would use to describe his own writing (somewhat derogatorily). My first thought was drivel.
Hack (hackwork), drek, schlock, pulp, sludge (only because fiction magazine editors call the mass of submissions that come over the transom the "sludge pile").
Perhaps the word you are looking for is scrawl
v.tr. To write hastily or illegibly.
v.intr. To write in a sprawling, irregular manner.
- Irregular, often illegible handwriting.
- Something, such as a note, written hastily or illegibly.
It's called cacography.
bad handwriting; poor penmanship.
I have pretty bad handwriting. Once a person called my handwriting 'chicken-scratch'. That sounded appropriate for bad handwriting.
Amateurish writing is used to describe a style of writing that is poor.
Doggerel. I don’t know if anyone applies the word to his or her own writing, but it’s a good word for other people’s tripe.
I'd call bad writing trash or garbage.
Not exactly relevant to your question though fits the topic: in Russian we call bad writing макулатура (wastepaper).