An excuse for social alcoholics to drink on a Tuesday and not feel guilty about it.
Milo: ugh, I'm still recovering from Mojito Monday.
Stephen: Well drink your detox tea because tonight is Shochu Tuesday and tomorrow is Rock-and-Sake Wednesday!
The projected probability that someone will show up to a pre-planned event, usually expressed as a percentage.
Michelle: Are you going to Shochu Tuesday tonight?
Milo: Yeah prolly. Ill give you a flakecast of 70%... If I don't go it's because I've been drinking all weekend and my liver needs a rest.