It seems to me you've been making appointments behind my back and turning the place into a kind of seminary.

But I wouldn't even mind that except they all make fun of me behind my back.

They're not trying to make plans behind my back.

She made a little sign to Bill behind his father's back.

I half expected five-year-olds to be making funny remarks about them behind my back.

You knew how I felt, and all the time you're making it with him behind my back.

You both knew that - but you made a deal behind my back.

Sun didn't have a sending unit with which to reply, but he made a hand signal behind his back.

How could she have stood there and chatted with me if the two of them were making it behind my back?

I made a classic Italian gesture of disrespect behind his back.