Back nine – the final nine holes on a golf course; holes 10 through 18
 
Backspin -- the backward spin of a ball when struck with and angled clubface like a wedge, which gives the ball extra lift in the air and minimizes the distance the ball rolls when it lands, also called “Bite” or “Action”

Ball-marker -- an object, such as a coin, used to indicate the position of a player’s ball on the green
 
Ballmark Tool -- a tool used to smooth the green after the ball’s impact indents it, sometimes this tool is incorrectly referred to as a “Divot Tool”

Banana-ball – a slang term for an extremely exaggerated slice
 
Bare Lie -- a position with no layer of grass between the ball and the ground

Barkie -- achieving par or better on a hole despite hitting a tree

Baseball grip – holding the club with all ten fingers, also known as the “Ten-Finger Grip”

Best ball – a game variation involving teams of two, three or four players compete with each team member hitting his or her own ball, and the best score from each team taken at the end of the hole

British and International Golf Greenkeepers Association (BIGGA) – a professional organization regulating guidelines for golf course maintenance
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Birdie -- finishing a hole at one stroke less than par

Bite -- extreme backspin put on a ball which greatly reduces the landing

Blade -- an “Iron” made from forged metal instead of cast in a mold, or a shot hit with the middle – the thinnest point of the iron’s club face
 
Blind – any shot in which the golfer cannot see the ultimate landing spot of his or her ball

Block -- a shot veering to the extreme right, not a “Slice” however because a block goes immediately to the right, also called a “Push”

Bogey – finishing a hole at one stroke more than par

Borrow – a British term for “Break”

Bounce – the angle of the edge of an “Iron” (usually a “Wedge”) from the “Sole” up, which determines the club’s effectiveness at penetrating the ground beneath the ball. A lower bounce is desirable for thin or shorter grass, while a higher bounce is useful in the deep rough  

Break -- the features in a green’s construction that cause the ball’s path to deviate from a straight line

Bump and run – a lower angled shot intended to reach the green from the fairway largely by rolling, a shot suitable for longer distances than a chip

Bunker -- a  hazard, usually made of sand and at a lower level than the rest of the course; there can be no grass or wooden banking walls.