What is Beaking Off?
1.
(Canadian usage)
1)To be verbally insolent, belligerent or insubordinate;
2)To be mouthy to or backtalk someone;
3)To complain profusely about something.
"I'd love to dig a new trench, Sergeant. And if I thought you knew what you were talking about, I might do it."
"Are you beaking off, Corporal?"
"He's still beaking off about losing the election, and that was six months ago!"
See