The act in which one cosumes alchohol prior to attending an event at which alcholic beverages may or may not be served. Often popular with university or college students who can't afford to buy to many drinks at a bar or high school kids who plan to attend events such as dances.
Also shortened to 'Prinks.'
Man 1: "Are you coming to the club tonight?"
Man 2: "Yeah, but i'm prinking at John's before; i'm running low on cash."
Sometimes perceived as a sophisticated social gathering one attends before they go out for a night on the town.
However, "prinking" is well-known Irish activity of getting so shit-faced and fucked up before you head for a night on the town/going to Mass/going to school/doing the weekly food shop, you practically end up shitting and vomming the gaff up on your way out the door.
This is the time and place where bitchez be bracin' themselves for a good time.