Typically a employee at Zatty burger but it also can be used as a slang. If you call someone a Zatty then that person would feel insulted by your use of words
Kid: Dude aren't you a Zatty go back to your job!!
A person who in class browses on Amazon for nerf guns and Lego sets and claims that his name is pronounced as “Zayed” although most people refer to him as “Zattar” or “Zaytoon” or “Zouzou”