A determinant of how many beers you must consume before you bed her. Comes from Canadian brewing company Molson. Merged with Coors because Canadian beer sucks. The higher the number, the worse the situation.
by amato24 February 21, 2011

The hot girl in psych class has a Molson scale of 0 to 1, whereas your elderly grandmother has a Molson scale of 25.
by Dansky Kral February 22, 2011
