Webster's Revised Unabridged Dictionary · 1913

Sclaff

Sclaff , intransitive verb

[Orig. uncert.]

1.
To scuff or shuffle along. [Scottish]
2.
(Golf) To scrape the ground with the sole of the club, before striking the ball, in making a stroke.

Sclaff , transitive verb

(Golf) To scrape (the club) on the ground, in a stroke, before hitting the ball; also, to make (a stroke) in that way.

Sclaff , noun

1.
A slight blow; a slap; a soft fall; also, the accompanying noise. [Scottish]
2.
(Golf) The stroke made by one who sclaffs.
3.
A thin, solid substance, esp. a thin shoe or slipper.