Somebody who lives for the weekend. They show an inexplicable desire to go out and waste an entire week's wage over the course of the weekend.
Will more often than not boast about it to their friends.
1: "I got totally wasted!"
2: "Okay. Do you want to go out and get something to eat?"
1: "I can't. I spent all my money getting wasted!"
2: "How will you survive for the rest of the week?"
1: "Who cares? Friday will be here in no time. I'm gonna get wasted! Partyyyy!"
2: "Scrap this. I can't continue to be friends with a weekendolt."