That moment after you finished watching some sick, fucked-up, porno and your just sitting there thinking "What the hell is wrong with me?" While you ponder life and shit.
Dude, I just watched some bondage beastiality orgy porn video last night and I immediately had post porn depression.
The feeling you get the day after you see a really fantastic concert.
Symptoms include:
1. The desire to relive the concert,
2. Thoughts similar to "they the band were right there!" or "i'm never going to see them again!"
3. Emotional pain when listening to the band's music.
Post concert depression can last up to a week, depending on the awesomeness of the concert, and, even after a long time, listening to the band's music may cause a relapse.
Caused by watching the complete Star Warssaga. After finishing, sufferers are saddened by the fact that they end at six. The only cure is to watch them all again.
I just finished watching the Star Wars saga on DVD, and now there isn't anything as cool so I need to watch them again to cure my Star Wars Depression.