When a golfer hits the ball with the bottom part of the club, it is called a sclaff.
Sclaffs are usually not good because they don't make the ball go where the golfer wants it to go.
Examples:
He made a sclaff and the ball didn't go far.
She sclaffs the ball and it goes into the water.
The golfer sclaffs the ball and it goes into the trees.
The squirrel runs away with the ball after the golfer sclaffs it.
He always sclaffs the ball, it's like he's trying to hit the wrong way!
The golfer sclaffs the ball and it hits his friend in the leg.