Used around Milton Keynes and Newport Pagnell as a referance towards drinking carlsberg, (brewed in Northampton neighbouring town) Derogitory term for a poor class of lager.
Awwww narrr bruvv I ent drink here they've only go Piss Arse on tap!
is the frequent passing of loose, watery and unformed faeces from the result of food that is not meant for human comsumption.
That lunch has given me piss arse. I'm never going back