FMTL is the abbreviation for Fuck My Time Line. Just as you might use FML to end a story about how annoying your personal life is, apply FMTL when discussing annoying stories about current events, politics, etc.
I really thought that our politics had gotten to maximum absurdity, and now Kanye is running for the White House. FMTL.
Can be used to express disappointment, excitement or to give someone permission to sodomize your rectum. Generally used in a similar manner to FML (Fuck My Life)