Also known as white sign or greens. In times past crabbers broke a joint of the cheliped or claw leg to see if the crab was developing a second skin underneath, in which case it was judged a peeler. Unattractive as it is, the term snot is a highly descriptive holdover from this ancient practice, from the fluid that emerged at the break. Today, wate... Found on http://www.bluecrab.info/glossary.html