When one attends a summer camp, or any camp for that matter, as a tween and poops in the woods on an outing you receive a brown bead for your endeavours.
Hey did you see Scott's bracelet? He got his brown bead today!!
The skid mark left on the toilet lid when a person has to shit really bad and they realize the toilet lit is down, after sitting down. Causing them to slide off the lid to lift it.
“I didn’t realize the lid was down and accidentally made a brown comet”