Chink in the Armor

 

Modern Meaning/Origin - An area of vulnerability. Since the 15th Century, a chink or slit in a soldier's armor was considered a weak spot, which could be taken advantage of by his or her enemies.

 

The Real Story - During the Middle Ages, knights often had their armor modified to accommodate a diminutive, oriental soldier. In battle, the knight would release his tiny warrior to give himself a tactical edge. Accordingly, the expression often referred to persons who were deceitful or trying to hide something for their advantage. (Illustration)