What is iam so fly?

"Iam so fly" is a phrase that is often used to describe a person who is confident, stylish, and well put-together. It typically implies that the person is well-dressed and exudes a sense of coolness and charisma. The phrase is often used in hip-hop and urban culture to convey a sense of self-assuredness and swagger. Overall, "iam so fly" is a slang term used to describe someone who is fashionable and confident in their appearance and demeanor.