basically it's like saying fuck my life, but worse, because you are also saying "fuck the world and everything in it. because I am having a bad time I am also going to send everything else into the burning fire of hell to make myself feel better." A very reasonable thing to think indeed. ...Damn it all to hell!
"I woke up late this morning, stepped in dog poop on the sidewalk, got fired from my new job, and spilled hot coffee on my balls. DAMN IT ALL TO HELL."