(n) the ultimate of all insults, for which there is no comeback. Fighting words; only to be used for most hated enemies. Note - will inevitably result in escalation to violence.
“Hey boy, what’s that fine mama of yours doin’ tonite?”
“Don’t go there brother…”
“Why not? I would definitely hit that!”
"That’s it! You goin’ doooown, shanazarillashazbiznatchgaziza!"