The practice of drinking and partying the entire weekend. Starting with after work/school/lecture drinks and continuing throughout the weekend. Sole purpose is to indulge in a lifestyle worthy of a rockstar of the old days: party, booze, bbq, Bacon, etc.
This includes the sacred ritual of a beereals-breakfast and kicking off the day with booze.
A: Hey, what are your plans for the weekend?
B: Dunno, Rockstar Weekend?
A: Hell yeah!