The porn video tag "hardcore-partying" refers to a scene in which the participants are engaged in extreme or intense sexual activities, typically accompanied by a wild party atmosphere. This may include elements such as heavy drinking, loud music, and large groups of people, while also featuring explicit hardcore sex scenes like rough penetration, BDSM, multiple partners, and other high-intensity acts. The focus is on both the extreme sexual encounters and the chaotic environment in which they occur.