Wearing more than two bracelets and a watch on one wrist.
Commonly seen in people who cut themselves trying to hide it.
Also seen in people making a fashion statement.
Person 1: Where'd you get those bracelets?
Person 2: I got this one from Hot Topic, this one from Wal-Mart, this one from my parents, this one from my boyfriend-
Person 1: Girl, you're bracelet stacking.