baff I. \ˈbaf, -aa(ə)f, -aif, -ȧf\noun (-s) Etymology: probably of imitative origin 1.Scotland: blow, stroke, thud < she struck him on the face with a resounding baff > 2.: a golf stroke in which the sole of the club hits the ground and drives the ball aloft II. transitive verb (-ed/-ing/-s) : strike; specifically: to make a stroke with a golf club so that the sole of the club strikes the ground and lofts (the ball)