I think if your going to eat pizza with a knife you should use a button knife.

People now call button knives a switch blade.

When I was a kid we called them a button knife. Press a button they open.

My friend Donnie had a switch blade. It was a knife that you could actually switch blades. One was a straight blade that they call now a stelletto blade. That's bull shit a stelletto blade was a kind of swiggly blade.

You could buy a button knife back in the old days in any NYC candy store like 8 inch blade for 8 dollars.

If I had to eat a pie today I would wear knock around cloths and stab a slice with a button knife.