Actually they're both legitimate "local" terms. the term "roughrider" has been used in many western contexts in Canada and the States, but the Saskatchewan term was taken from a team of North West Mounted Police (precursor to the RCMP) horsemen known as the "Roughriders"The Ottawa term came from the nickname for loggers on the Ottawa River; when you're rolling logs, you're a "Rough Rider".
Poor Wally!I've loved Wally since the first time that I saw him coaching B.C. .. (I have a great B.C. Lions jersey that I need to post) .. his expressions are priceless ..