Being blackout drunk, and then proceeding to take ecstacy. Side effects may include - Bisexual encounters, making an absolute fool of yourself, taking off clothes, dancing, vomiting, dehydration, orgies, smoking a lot of cigarettes, regretable decisions/hookups, etc.
Friend: Dude you were a rolling blackout last night... you made out with 2 chicks and a dude at the same time...
Friend: Ya man you took a G's up Hoe's down last night when we got to the club...don't you remember?
Me: Naw man i was blackout drunk by the time we got there.