What is i know you are but what am i?

"I know you are but what am I" is a phrase commonly used as a retort or comeback in an argument or a conflict. The phrase has been popularized in pop culture, especially in movies and television shows.

The phrase is often used as a deflecting tactic, where the person being insulted responds by throwing back the same insult but in question form, thus making the insult sound immature or nonsensical. The response is often used to discredit the original insult and embarrass the person who made it.

"I know you are but what am I" is a classic example of a childish response that is often used by children. However, it can also be used by adults in a humorous or sarcastic way to deflect an insult or to mock someone who is using the phrase in a serious manner.