How to be Insulting about Nosey People

The right hand always knows what the left hand's doing if she can get her mouth in between.

Anything she hears goes in one ear and out through the telephone.

You can rely on her to keep your secret — the one she passes on is always her own invention.

He's the type of man who can't leave bad alone.

You can guarantee that she'll be suffering from severe indiscretion after any dinner-party.