She cut him off with a wave of her hand.

I'm cut off from any means of communication with home base.

He started to speak, but she cut him off with a wave of her hand.

He started to speak again but I cut him off with a suggestion we move to the living room.

I cut him off with a sharp movement of my hand.

Before he could answer, she cut him off with a gesture.

He cut me off with a wave of his hand.

The way in which I finally cut off with one was the following.

If George started to explain, he'd cut him off with another question.

I cut him off with the wave of a hand.