Code golf is a game where people try to write programs that are very short, but still do what they're supposed to do. It's like a competition to see who can write the smallest possible program that still works correctly. It's kind of like trying to fit a big puzzle into a small box – you have to be really clever to figure out how to make everything fit just right. The people who play code golf are usually computer programmers who like puzzles and challenges. They try to find clever ways to write programs that do the same thing as other, longer programs, but using fewer words or characters. It's kind of like a very nerdy version of a game show, but instead of winning a bunch of money, you just get bragging rights for being really good at writing compact code.