Ok kiddo, let's talk about "judicial estoppel". This is a big phrase but basically it means that someone can't say one thing in one court case and then say the opposite in another court case.
Think of it like this - you can't wear a red shirt on Monday and then say "I hate red shirts" on Tuesday. That just wouldn't make sense, right?
Well, in court, it's important for people to be honest and truthful. If someone says one thing in a court case and then says the opposite in another court case, it can be really confusing. That's where judicial estoppel comes in - it helps to make sure that people are consistent in what they say in court.
So, if someone says something in one court case, and then tries to say the opposite in another court case, the judge might say "No way, you can't do that! You said the opposite before, and I'm not going to believe you now." That's judicial estoppel.
It's kind of like if you say you ate all your vegetables for dinner last night and then later say you didn't eat any vegetables - someone might say "Hey, you can't say that! You said you ate them before!"
So, remember - always try to be honest and consistent in what you say in court, and that's what judicial estoppel is all about.