When you've watched all episodes of a TV show and/or the show ends and you don't have anything else to do and you feel like your life has no meaning anymore and you just feel lost and don't even know what is happening around you anymore.
She/He:"The show is over. I don't know how it happened. Don't know why anything that's happening is happening. I think i'm having a TV Show Hangover"
Friend:"It's okay. Doesn't matter"
She/He:"Of course it does :O"
When one consumes such copious amounts of alcohol that the next morning they are hungoverto the point where it is clear and visible to all those around you.
John: Yo man, look at Dave! He is nodding off in class, falling out of his chair, looking like he has to vomit, and begging Kate for aspirin!