A word originally used to describe self-manipulation. It evolved into a description of what one intends to do with the course of the day, ie, to replace the common slang term 'nm'. It then completely degenerated into a word that, once said, would be repeated by every person within a twenty foot radius, reminiscent of the seagulls from Finding Nemo.
Person 1: Hey, why didn't you call me last night?
Person 2: Sorry, Jeff Goldblum was on A&E, and I had to MABATE!
Every person within a twenty foot radius: MABATE!
The abbreviation for Masturbate or just something you say when you do not know what you are going to do that day.
Hey JOe what are you doing today?
shut up joe