Definitions by Bruin Suiker

Scouse briefcase 

A plastic shopping bag, likely to be from such supermarkets as ASDA or Netto. Used to carry a variety of non-shopping items, eg. books. Once they fall into disuse they can be seen blowing aimlessly in the wind.

(At an Everton match) "Get that Scouse briefcase off the football pitch!"

Scouse briefcase by Bruin Suiker April 19, 2010