term used to describe a cross between a message and an essay, on the popular myspace website or similar. usually overly long and elaborate, with minimal point.
Dr A: did you get my messay?
Ms B: yeah, but i couldn't be bothered to read it or reply to it yet.
An essay which is so poorly structured and messy, that it can no longer be classified as an essay.
I wrote a messay on the poetry of Patrick Kavanagh.