Ahoy there, matey! So, you know how sometimes people take things that aren't theirs? Well, these people are called pirates. And when they take things, it's called piracy.
Now, when pirates take things, they often take valuable things like gold and jewelry. This valuable stuff that pirates take is called "booty."
So, pirate's booty is just all the valuable things that the pirates have stolen. It could be coins, gems, treasure chests, or anything else that a pirate thinks is valuable. It's kind of like a pirate's treasure!
But, stealing things is not a nice thing to do, and piracy is against the law. So even though you might see pirates in movies or in books, remember that it's not okay to steal things like they do. It's always best to ask for things nicely and to share with others! Arrr!