The feeling one gets on a Sunday night or Monday (and possibly after) following a good weekend. Symptoms are a sadness to wait a week for the weekend, a need to party/club/etc, depression when you hear a party/club/dance song, the need to go out during the week even if it means disregarding responsibilities, and others of the sort.
Tyler: I'm going to skip class tomorrow.
Will: Why?
Tyler: I have weekend withdrawal, I'm going to find a party.
(verb) The act of propping up a friend who's passed out and can't stand on his or her own.
Dude, you were so shot yesterday after pounding beers at the pool. You passed out in a lounge chair and I had to Weekend at Bernie's you out of the pool area and onto the elevator. I propped you up with my knee. This older couple that got onto the elevator was horrified.
You were passing out but there was no way I was going home without any numbers. I ended up Weekend at Bernie-ing you to two more bars. These chicks I was talking to thought you were drugged.
Often when a group of college students have a wednesday with one or no classes, they will begin to drink at midnight on tuesday and long into wednesday morning.
John: "Do you have any classes tomorrow?"
Steve: "Tomorrows wednesday right? No I dont."
John: "Dude, lets make it a weekend wednesday."