To hit a golf ball with the bottom part of the club, causing the ball to go a short distance and not in the intended direction.
Sclaff can make people think of making a mistake while playing golf.
Examples:
He always sclaffs the ball when he tries to hit it far.
I sclaffed the ball and it didn't go very far.
Don't sclaff the ball, hit it right!
I sclaffed the ball so badly, it went behind me!
He sclaffed the ball and it only went a little bit.
She sclaffed the ball and everyone laughed.