Westsplaining is when someone from the western part of the world explains things to someone from a different culture or background in a way that is not respectful. For example, if someone from the western part of the world is talking to someone from a different part of the world and they assume that the other person isn't as knowledgeable or has a different way of doing things, that would be westsplaining. It's like when someone talks down to someone else, assuming that they know less than they do. It isn't a nice thing to do, and everyone should be respectful of each other no matter what background they are from.