Four-spin

Okay, imagine you have a four-sided toy top, kind of like a dreidel. Now imagine each of those sides is either up or down, like how you flip a coin. That's called a spin. And because there's four sides, we call it a four-spin.

Now imagine you have two of these tops and you put them together. It's kind of like playing a game of thumb war, but with spinning tops. The cool thing is that you can make these tops spin in a way that creates a special pattern, almost like a dance. This pattern is called a four-spin, because it involves four spinning tops doing this dance together.

So, in summary, a four-spin is when four spinning tops do a special pattern that looks like a dance.