The last few sips of beer left in a forty that, as a result of being unrefrigerated for an extended period of time, has become warm and both looks and tastes like piss.
Nothing better than a forty, until you get all the way down to that witch piss.
by matchell February 02, 2009
1 more definition
Lager (orig. Yorkshire)
Tha not drinking that Witch Piss again, are tha? Drink a proper man's drink!
by Wild'n'Windy October 24, 2009