A Knuckleball is a type of pitch in baseball that puts no spin on the ball, causing it swerve, when it's pitched. This makes it more difficult to both hit and catch. It's a type of pitch that is typically thrown by a pitcher who specializes in Knuckleballing and who requires his own catcher.
I like the idea of being somewhat unpredictable and erratic. I named my web development company Knuckleball Design and it's also the basis for an album that a friend of mine recorded, called The Knuckleball Suite.
Ironically, I know very little about baseball. I know enough the be able to understand what's happening in a game, but I'm terrible when it comes to stats, etc.