Idiolect is the way an individual person talks. Everyone has their own idiolect, which is different from everyone else's. It's like a fingerprint, because no 2 people are the same. It's all about the words and phrases we use, the way we speak, and any other little details that make our way of speaking unique. These little things come from our experiences, the places we've lived, and can even change depending on who we're talking to.