The phrase “it’s my jam” is a colloquial expression used to indicate that someone really enjoys a particular song, genre of music, or even an activity or experience. When someone says a song is “their jam,” they mean it resonates with them, they love it, or it brings them joy.
The term can also be extended beyond music to refer to anything that someone is particularly fond of or passionate about. For example, someone might say, “Cooking is my jam,” meaning they really enjoy cooking. Overall, it’s a way of expressing personal preference and enthusiasm.