Interesting kahnjar, but i don't quite see the connection of the snakes with hockey and i'm not sure we can connect Northfield to Montreal though we can find an English place for St. Laurence, Northfield.
I think the English at that time are far more likely to have some NZ connection than Canada and in the early 1900s the New Zealand Rugby Team "The Blacks" made frequent tours throughout Great Britian playing against British teams. I believe that they may have used this phrase as a rally cry.
