the very first bead of sweat that runs down from your lower back into your arse-crack. if not attended to promptly, will gradually turn into arse-cheese, also known as sour-ass.
Tom the Carpenter was working on a very hot day when an assricle was formed, left unattended, the assricle created sour-ass. This left Tom with an itchy ass
by Dr. Squig October 27, 2009