gack
Gack is meth, and it’s also what you call a meth head when they’re acting like a wild animal.
That guy is a gack monster. He’s running around like he’s been injected with a thousand squirrels.
She’s a full-on gack beast now. I’ve seen her eat a whole pizza and still be high.
He’s not just high, he’s a gack demon. I’ve seen him throw a chair at a wall.