Ok kiddo, let me tell you about something called "šatrovački". It's a way of speaking in Serbia that is kind of like a secret code. People use it to talk to each other in a way that other people might not understand them. It's like a fun way of talking that only certain people know how to do.
So, let's say you and your friend want to talk about a secret surprise birthday party for your mom. You might use šatrovački so that your mom doesn't understand what you're saying. Instead of saying "Hey, let's plan a surprise party for Mom's birthday", you might say "Hey, let's do something special when that lady's day comes around".
Šatrovački words often sound like regular words, but they have different meanings. Like "žderač" means "dog" and "merak" means "fun". It's like a game trying to figure out what the words mean.
It's not just for secrets though, sometimes people just use šatrovački to be funny or to show off. It's kind of like a special language that only some people know how to speak. But don't worry, if you don't know how to speak it yet, you can always learn!