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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!"
by CplKyle October 26, 2007