The Skid Boast is a very difficult shot to master. Although, can be very useful shot when used correctly.
Skid boast is a shot that is played from the back corners. The idea is to hit high on the sidewall , very close to the front wall intersection. It is best to hit this off a deep rail shot. The ball will hit the front wall high and lob itself into the opposite back corner. If hit correctly, huge amount of spin will be imparted to the ball