Period from Thursday afternoon to Monday night during which excessive amounts of alcohol and drugs are consumed in attempt to forget the previous four days.
Random co-worker: What are you doing this weekend?
Billy: Nothing, just relaxing.
(thinking): I'm going to get drunk off of Bacardi and Vodka, then smoke a joint and hook up with my girlfriend's best friend. I'll come in on Monday drunk and high, make bee line for my cube, then just stare into space for several hours while listening to Jethro Tull. After that I'll contemplate quitting for a while, then play solitare till its time to leave.