To have a weekend of all out partying with alcohol to determine your safe alcohol limit.
I'm going off to college next year I think I might have a safety weekend.
Minor changes to physical appearance when you come into work on Monday. You may have gotten a haircut, a tan, or look a bit hungover.
Brian: I'm going to turn the other lights on.
Jay: No keep them off, I don't want everyone to see my weekend afterglow.
Lets get on the weekend juice.
She had too much weekend juice last night and is paying the price today.
The act of only talking/seeing your significant other on the weekend. This is typically caused by a busy work schedule or embarrassment of the significant other.
I really like Eddy, but we're only weekend dating.
a cup with which you use on the weekend when you are drinking to hold an alcoholic beverage without your peers knowing
I need to wash my weekend cup so I can get shitty this weekend at the park
Susie: "Nickelback concert on Saturday. You coming?"
Zeek: "Nah, I'm going to Bend, OR for the gold weekend"