Numerous expressions slip into our daily conversations without us ever wondering about their origins. Admittedly, a few of them are somewhat intuitive and it's pretty obvious. However, certain expressions hide rather disturbing origins, and most of us are totally unaware.
Some of these phrases have strong historical ties, originating from medieval battlegrounds to times of slavery. They have endured for generations to find their way into our everyday vocabulary and we're none the wiser about their grisly etymology.
Browse through the following gallery and learn about the dark origins of these common expressions.