The back end wants to come around. Oversteer is hitting it with the rear. Most cars are built to understeer at their limits. Sliding in a straight line is preferable to spinning and the natural reaction to a situation like this is to get off the gas which transfers weight to the front giving those tires more traction and reducing the understeer. This is the ideal situation for the race track.
Some cars are easier to set up than others.
If you skid look where you want to go . If you're looking off the side of the road chances are you will mentally and physically steer there. If you lock the brakes you lose steering control. You'll stop sooner and slide in a straight line. Braking Brake in a straight line.