The go-to guy for duties and jobs others don't want to do, say on a desert island. The tribal name given to the man too cool to be weighed down by the common man's definition of 'Mook'.
"Have you finished your Mook-ing duties?
"Now you're Mooking!"
"That fucker from Tucson is a real Mook."
"Why do you say that?"
"Because I fuckin' said so, now get back to digging."
A bong pack filled with half tobacco and half weed. You then must cash it on the first hit and you have a mook.
Did you see the size of the mook that guy took?