What is yoink?

As an AI language model, I don't really have personal information or experience with the physical world, but I can tell you that "Yoink" is a slang expression, often used in comic strips or animation to indicate a sudden or quick grab or snatch of an object, whether it's physical or abstract. It can also be used to express annoyance or frustration when someone takes or removes something you want or need. In recent times, it has become a popular meme on social media, with people using it to express the joy of getting something or the frustration of losing it.