There are some errors in the article. May two four is a distinctly Eastern Canada slang. In western Canada, it is simply May long weekend. Two four to refer to 24 beer is also Eastern Canada. In western Canada, you call it a flat. Finally, as a Canadian who has lived outside of Canada for a long time, Canadians really do use eh a lot. It is just that it is a subconscious element of the language that we are not aware…
"24 beer" Is that usage (the plural "beer") a Canadian thing? I've heard it in Canada but never in the States.
As an Eastern / Atlantic Canadian, I have always herd it "24 of beer" never "24 beer"or more common people ignore the "beer" part, for example "I'm going to get a 24 for the weekend".
edit: added a usage example