utrhnout se na koho, utrhnout někomu hlavu (přen.)
The biggest concern of the executioner, a man named Billington, was that the now quivering bulk of a fifteen stone woman would snap her head off as the rope took up the slack on the trip through the trapdoor.
The silly idiot is going to shout some sort of stupid abuse at her and she’ll bite his head off!
She was some girl! Not two minutes in his company and she was biting his head off. Now she didn’t want to go to an expensive restaurant in the West End .