Glassblowers Arse

The condition one finds oneself in on an extremely hot day, or doing particularly heavy work. To Sweat profusely in an unattractive manner. Especially true if sweat makes your trainers/shoes soggy. Happens a lot to overweight people.

From the Liverpool argot 'Scouse' - a runny nose, a pun on diarrhoea. Probably a skit at the glassblower's trade which would involve some straining, a hazardous practice for someone suffering any looseness of the bowels. (There is a traditional glass industry at St. Helen's, on the Mersey estuary east and inland of Liverpool.)