Few games have inspired as much joy—or as much rage—as golf. And it’s not just the game that’s challenging—its terminology can be downright befuddling.

Here’s a glossary of common golfing jargon to help you out as you hit the links this summer. It might not improve your game, but at least you’ll be able to impress your friends.

Bogey

Bogey is a term used for one stroke over par. Bogeys come in a variety of forms—double bogeys are two strokes over par, triple bogeys are three strokes over par, and so on. The term originated in England.

Ace

Also known as a hole-in-one, an ace is a hole completed in a single stroke. These are most common on par 3 holes, which are the shortest holes on a golf course.

Birdie

A birdie is a hole completed one stroke under par. This term originated in the United States in the late 1800s, when people commonly used “bird” to describe anything that was really good.

Eagle

An eagle is another Americanism for a hole completed two strokes under par. Some say this term became popular because eagles are larger and more majestic than mere “birdies,” while others say it’s because eagles are rarer.

Albatross

An albatross is—you guessed it—a term for three under par or a hole-in-one on a par 3. Like the bird itself, achieving an albatross in golf is rare indeed.

Condor

Keeping with the bird theme, condors are holes-in-one achieved on par 5 holes (i.e., four under par). These are exceptionally rare, but usually occur when a golfer “cuts the corner” on a dogleg by hitting the ball directly over brush or woods. If you actually manage to accomplish this highly improbable feat, we recommend putting your clubs away and leaving the golf course immediately. You’ve already achieved the ultimate in golfing greatness—time for a new challenge.

Mulligan

If you’ve ever played a friendly game of golf, chances are you’ve taken—or at least been sorely tempted to take—a mulligan, or a do-over shot. The precise origins of this term remain unclear, but the popular belief is that a Canadian golfer named David Mulligan became fond of taking “correction” shots in the 1920s. His golf buddies took to calling these do-overs Mulligans, in his honor.

Shank

Arguably the most dreaded term in golf, a shank occurs when a player strikes a golf ball with the hosel of a club—the area where the shaft is joined to the club head. This usually results in the ball careening off at a wild angle. Shanks are so dreaded and feared that superstition precludes many golfers from even speaking the world aloud on a golf course.