Webster's Revised Unabridged Dictionary · 1913

Baff

Baff (baf) , noun

1.
A blow; a stroke; thud. [Scottish] — H. Miller
2.
(Golf) a stroke in which the sole of the club hits the ground and drives the ball aloft. [Scottish or Golf]

Baff (baf) , verb, transitive and intransitive

[Scot., prob. imitative; compare German baff, interj. imitating the sound of a shot.]

To strike; to beat; to make a baff. [Scottish or Golf]