light (one's) hair on fire(redirected from lights your hair on fire)
light (one's) hair on fire
1. To fill one with intense or overwhelming passion, often causing them to behave erratically or wildly. John and I have very different political leanings, so hearing him rant about these issues always lights my hair on fire. I don't want to settle for a lukewarm, casual fling—I want to be with a man who really lights my hair on fire, someone I connect with deeply and passionately.
2. By extension, to behave erratically or wildly. Sure, I used to party and really light my hair on fire as a teenager. But those days are long gone now that I'm a mom.
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.