verb
roister
ROY-ster/rˈɔɪstɝ/
To enjoy oneself in a noisy, boisterous way.
The guests roister late into the night after the wedding.

Etymology
Latin rusticus meant “of the country” and also “rough, coarse.” That latter sense developed into “ruffian” and then noisy, swaggering behavior, the basis of rowdy celebration.
More examples
- Fans roister in the streets after their team's victory.
- We roistered until the bartender asked us to quiet down.
- The neighbors complain when we start roistering on the porch.
Forms
roister · roisters · roistered · roistering
roisterer noun — Someone who enjoys noisy, boisterous celebrations.