Blaverism is when someone pretends to know something they actually don't know. It's like when a kid in class raises their hand and answers a question even though they have no idea what the answer is. They just want to seem smart or impress their friends. But really, they're just guessing or making things up. It's okay to not know something, and it's better to admit it than to try to bluff your way through it. That way, you can actually learn the right answer and not be a "blaver".