I can't believe you haven't heard people say things like "get ******, mate", "you're a ******* idiot, mate" etc.
"You wanna go mate?"... right before fists are thrown.
Kinda weird way to ask someone to fight.
I suppose back in days of yonder you threw a few, then had a beer with the bloke, so they ended up being your mate.
These days people get all head stompy.