jacking it
This is a guy who lifts weights like he’s fighting a dragon, and if you give him alcohol, he’ll fight you like you’re Mike Tyson.
He lifted a barbell like it was a dragon, and when he drank, he fought the guy next to him like it was a boxing match.
He drank beer and started fighting the guy who didn’t say 'hello'.
He drank and fought a guy who just wanted to sit down.