When things are going wrong and you need someone to blame. Dave is a fictional character on which you can reflect your anger, the universal 'baddy'. Originating from the 'Lost' episode 'Dave', wherein Dave is Hurley's imaginary friend, telling him to disobey his doctors.
In social media, #damnyoudave has been a trending topic for a few days in june 2015.
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."
(meme) A phrase one bro says to another to indicate that he is attracted to a chick in a nonchalant manor. It can also be a game in which one bro guesses what girl the other is referring to while in public with multiple women around them.
Bro: Damn, Ken. She's actually... kinda cute.
Brah: Hmmm, the blonde? Or that brunette in the pink over there?
Bro: ¯\_(ツ)_/¯