Based: Having many girls, being mansion, swagging to the maximum, and looking like Jesus; see here.
Biscuit: a hot babe.
Bougie: high class; see here.
Bromosa: a mimosa.
Dark & Stormy: the premier summer cocktail; see here.
Frat Lap: the act of circling a bar to survey the female talent.
Final-Final: Absolut Citron on ice, typically the final drink of the night; see here.
Gamechanger: a 32 oz. cocktail containing equal parts whiskey and coke; see here.
Hot Bro Drive: a long-ass-motherfuckin' drive on a golf course.
Main-Eventing: showing off; peacocking.
Mind Eraser: a shot consisting of vodka, Kahlua, and soda water (poured in that order over ice). The shot is consumed via straw from the bottom of the drink in one fluid suck.
Montana Cooler: "...you buy a case of champagne and you take all the bottles out, and you take all the cardboard out, and you put a garbage bag inside of it, then you put all the bottles back in and then you cover it with ice, and then you wrap it up and you close it." - Bill Murray, as seen here.
Neknominate: game requiring the participant to film themselves drinking a pint of an alcoholic beverage, usually beer, in one gulp and upload the footage to the web; annoying as hell; see here.
Own Program: the act of going off-the-grid while simultaneously being awesome; abbreviated to "OP"; see here.
Shaker: a party, as popularized by Phil Kessel.
Shitripper: a rad house-party (picture Can't Hardly Wait).
Sunday Blues: see "Sunday Scaries".
Sunday Night Kill Myself: a playlist used to combat the Sunday Scaries; see here.
Sunday Scaries: Seriously, you don't know what these are by now? See here.
Sunday Stinks: the act of sweating on a Sunday, normally due to severe exhaustion and alcohol intake from the previous weekend; also known as Sweatin' & Regrettin'.
Sweatin' & Regrettin': See Sunday Stinks.
The Fear: see "Sunday Scaries".
Wet Spot: a drinking game where you pee your pants; see here.
White Diesel: white wine.