A coureur des bois (French pronunciation: [kuʁœʁ de bwa]) or coureur de bois (French pronunciation: [kuʁœʁ də bwa]), runners of the woods; plural: coureurs de bois) was an independent entrepreneurial French-Canadian woodsman who traveled in New France and the interior of North America. They ventured into the woods usually to trade various European items for furs, especially beaver pelts, and along the way, learned the trades and practices of the Native people who inhabited there.
No it's not a slang word for vagina, it's Canada's national animal. Bottom line: beavers are a noble and majestic rodent. Yes, I just called a beaver majestic. They are resourceful, cute and damn smart. Respect the beaver people.