Does this vary by region? Where are you?
I've always wondered about this.
I use the word to refer to the little danglies that occur above the nail, the slivers of nail that come off the side sometimes and the wounds that ensue when you remove them, AND the little slivers UNDER the nail from when the nail breaks/is cut funny.
Crossposted to linguaphiles.
Also, how do you feel about bats? The animal, not the weapon.