A cheap beer thats gives you a horrible hangover and tastes like crappy water. Usually on special in large amounts, such as a "dirty thirty". Derived from shwag weed. Invented by the late David Butler.
waitress: We have Natural Light on special tonight for $2 pitchers

me: Sorry I dont drink shwale ale, I'll take a Labatt please.
by Clown Butler April 10, 2008
Get the Shwale Ale mug.