A more thorough explanation:

Definition:

Medley: An unexpected fight or brawl that occurs suddenly or casually. It is also known as an affray.

Example: During the protest, a medley broke out between the police and the demonstrators.

Explanation: A medley is a sudden and unexpected fight that can happen anywhere and at any time. It can occur between two or more people and can be caused by various reasons such as disagreements, misunderstandings, or even by chance. The example given shows how a peaceful protest can turn into a medley when the police and demonstrators clash.