The Stag spin, also known as the Ballerina, Sunwheel and Attitude is one of the basic pole dance spins that you will learn early in your pole dancing journey. It is a good idea if you learn the Fireman and the Chair spin before moving on to this one. This spin requires control and strength in your obliques. If you find you cannot pick up your legs well into position, try these core exercises to strengthen your abdominals and your trunk flexion.
Here is a video that demonstrates the move:
The Reverse Stag is a variation of the spin that does not have any foot contact with the pole. These videos demonstrate it: