Okay, so imagine that you are playing hide-and-seek with your friends. You are trying to find a good spot to hide where nobody will be able to find you. But you can't seem to find a spot that you really like. So you start moving around, trying different spots until you find one that works really well.
P-hacking is a lot like that game of hide-and-seek. But instead of trying to find a good spot to hide, scientists are trying to find a pattern in their data. When scientists run experiments, they collect a lot of data. And they use statistical tests to see if there is a pattern in that data.
Sometimes, scientists might not find the pattern that they were expecting. So they start moving around the data, changing different things until they finally find a pattern that they were looking for. This is called p-hacking.
But p-hacking is not a good thing. Just like cheating in a game of hide-and-seek is not fair, p-hacking is not fair to scientists or to the people who might use the results of their experiments. It can lead to false conclusions and bad science.
So, just like in hide-and-seek, it's important to play fair and stick to the rules when it comes to science. And that means being honest about your data and your results, even if they are not what you were expecting. So, scientists try not to p-hack their data and do honest research.