The phrase "You are something else" is an idiomatic expression that is commonly used in English to convey admiration, surprise, or amazement about someone's unique qualities or behavior. Depending on the context and tone, it can have slightly different meanings:
Admiration or praise: When said in a positive or admiring tone, it means that the person is exceptional, extraordinary, or stands out in some remarkable way. It can be a compliment for their talents, personality, or actions.
Surprise or bewilderment: In some contexts, it can also express surprise or bewilderment at someone's unexpected behavior or actions. It suggests that the person has done something unexpected or unusual, and the speaker is amazed or taken aback by it.
Overall, it's a phrase used to acknowledge that the person being referred to is unique or has characteristics that make them stand out from others in some way, whether positively or unexpectedly. The exact meaning can be determined by the context in which it is used and the tone of the speaker.