Extremely vigorous and repeated acts of sexual conquest that are generally fueled by some combination of rage, pent up aggression, Red Bull and/or the White Horse. Definitively more forceful and aggressive than just banging, slamming, or plowing, a power session is multiple acts of sexual mastery generally leading to legendary status for the individual.
Jimmy: Yo, did you hear all that noise coming out of that room down the hall? Sounds like a bear was let loose.
Bobby: Yea, that’s just some dude giving his chick a power session.
Bobby: Yea, that’s just some dude giving his chick a power session.
by davidgilmorinoregon June 5, 2015
An occasion where two people are drinking strong alcoholic beverages, the two individuals must drink quickly, yet at the same speed. The Power Session ends when the two individuals are no longer capable of drinking more alcohol.
by Polythene December 29, 2016