short for HAL 9000, the killer computer from 2001: A Space Odyssey.
Some Dude: I'm gonna wrtie a better definition, HAL.
Me: I'm afraid I can't let you do that.
expendable member of a group or band
Proof that Ringo was expendable; John had a good solo career, Paul had a good solo career, George had a good solo career, Ringo? Mr. Conductor and Wakko?!
Oh lighten up. Ted Nugent is a guitar master who happens to run a militia, that's all.
You can't grill it 'till you kill it.