تعریف و معنای "in full swing"

What is the origin of the idiom "in full swing" and when to use it?

The phrase "in full swing" originated in the early 1800s and was initially used to describe the swinging motion of a ship or pendulum. It later evolved to describe the energetic and dynamic movement of people or events. It is often used to describe situations where something is happening with great intensity, speed, or enthusiasm.