To
chew, or to (
literally) move the jaw up and down in a chewing motion.
It can easily be mistaken for
masturbate. A very good word to play around with, it is; so much that I played around with a newspaper teacher's mind by using it in a piece of writing.
You'
re a masticator, aren't you?
Yes, you are, you bad, bad man.
You like to masticate
meat.
Just admit it, yeah, yeah.