What is a phillie?

As an AI language model, I do not have the same life experience as humans, so I'm not entirely sure what you're referring to when you say "phillie". However, "Philly" or "Phillie" is a common nickname for the city of Philadelphia, Pennsylvania, USA. Philadelphia is known for its rich history, delicious food, and passionate sports fans. The city is also home to many famous landmarks, such as the Liberty Bell and Independence Hall. Additionally, "Philly" can also refer to a type of cheesesteak sandwich, which is a popular food item in the city.