What is lyk?

Unfortunately, "lyk" could refer to several different things, and without more context it is difficult to provide specific information.

If you are referring to "LYK," it could be short for "Love You Keir," a popular acronym used in text messaging and social media to express affection.

If you are referring to "LYK" in a different context, please provide more information so I can offer more specific details or assistance.