A horrifically depraved sex act involving moose antlers, a jug of maple syrup, and the Stanley Cup. Usually performed by a tag team of Canadian Mounties on loose women from Saskatchewan. First brought to light by Stephen Colbert.
After going through Canada's History, the poor girl needed four months of therapy.
Canada's History is a sexual act in which both the male and female take a large shit on the corner of their bed. They then go to sleep and never bother to clean it up every again symbolizing that Canada's history is basically a bunch of shit no one even cares enough about to clean up.
Jim, "So me and Lisa performed a Canada's History last night, turns out its not hot or romantic at all"