Definition & Meaning of "yo-yo"

What is a "yo-yo"?

A yo-yo is a small, round toy made of two discs connected by a rod, with a string wrapped around it. The goal of the game is to make the yo-yo spin by throwing it down the string and then bring it back up using the string’s tension. The yo-yo has been around for centuries, with origins in ancient Greece, but it became widely popular in the 20th century. Players often perform tricks by making the yo-yo spin in different ways. It is a fun and challenging toy that improves hand-eye coordination.