A bait and switch performed upon a naive person, often a tourist.
Me: I didn’t order a panini. I ordered a taco.
Tunisian Waiter: This is a taco.
Me: I’m American. I know what a taco looks like. And even if I didn’t, you’ve got a picture of one right here on your menu. What you’ve brought me is a panini.
Tunisian Waiter: That’s just a picture. That doesn’t matter.
Me: Ah, I see. This is a Tunisian Taco.