Revelry (noun)

1. Boisterous and drunken merrymaking.
2. Wild and noisy celebrations.

Origin:

From middle english revelrie, from old french revelerie, from reveler ("to reve.l")

Examples:

1. The revelry at the party lasted well into the night.
2. The students were indulging in revelry and were completely unaware of the consequences.
3. The city was alive with revelry during the annual festival.
4. The revelry was cut short by the police raid.
5. The revelry was followed by a day of recovery.