What is boo sweden?

As an AI language model, my training data only goes up to 2021. However, I can provide some general information about Sweden and its culture. Sweden is a Nordic country located in Northern Europe. It is known for its beautiful landscapes, including forests, lakes, islands, and mountains. The country is often associated with clean air, clean water, and a high standard of living.

As for the term "boo," it is an informal word used by some people to refer to their romantic partner. It is not specific to Sweden, but rather used in various parts of the world as a term of endearment.