What is gooner?

Gooner is a slang term most commonly used to refer to a fan of the English football club, Arsenal FC. The term's origin isn't entirely clear, but it's often associated with the club's nickname, "The Gunners," and the imagery of cannons associated with the team.

While it's often used neutrally, or even affectionately by Arsenal fans themselves, it can sometimes be used derisively by fans of rival clubs. The context usually determines the intent behind its usage.