Mizzled is when somebody deliberately misleads or dupes you with malicious intent. You can be "misled" by bad directions but your cheater boyfriend "mizzled" you into thinking your relationship was great when in fact he was engaged to someone else. This is an important distinction, because often you start out thinking you were misled, only to find out later, you were MIZZLED!
Laura mizzled me into thinking that Blake had a girlfriend when in fact he didn't. All because she wanted him for herself.