The art of flipping pancakes is mastered only through practice. When you get good, you will find that you can get 4 pancakes on a single-burner square griddle, and flip all four without landing them on top of one another.
The secret is in the arc. Imagine when you are flipping, that you are describing a half circle in the air so that the spatula is over the same spot from where you lifted the pancake. That is, as you turn the spatula, you also slide it partially to the side, as if you were sliding it inside an ellipse. It's hard to describe the action.
Get yoursef an already cooked pancake, or slice of bread, and practice flipping the thing onto the same spot as where it sat before flipping. Also, the pancake has to be done enough to hold its shape when you flip it. Look for bubbles to form on top. But don't cook until they quit filling in by themselves.
I son't know how I developed the knack, just years of practice I guess. Both of my daughters figured it out as well, which drives a good freind of mine absolutely nuts because he can't flip a pancake into the same spot to save his life. Other than that, he's a pretty good cook.
The same wrist motion used to flip pancakes can be used when flipping steaks, burgers, anything with flat sides that will fit on a turner, even fried eggs.
But it's certainly less messy to practice with a piece of bread, or something like that.
Seeeeeya; Goodweed of the North