I can neither confirm nor deny
It’s like saying, 'I’m not going to tell you the truth, but I also won’t lie to your face.' You’re being a coward and a tease all at once.
My brother asked if I told his girlfriend he’s ugly. I said, 'I can neither confirm nor deny.' He knew I did.
My neighbor asked if I broke his fence. I said, 'I can neither confirm nor deny.' He knew I did.
My mom asked if I ate the last slice of pizza. I said, 'I can neither confirm nor deny.' She knew I did.