companions in champagne drinking. like compañeros, but inference is that it relates to friends getting completely and totally shithoused as a group.
Bronson really lit it up with his champagneros on their wine tour in the Russian River Valley. After the second pole dance with the vehicle in motion, the bus driver had to pull over kick his ass.
A drinking competition to see who can drink more bottles of champagne. A champagne championship, or a champagneship. Often times played on New Years Eve with the ball dropping marking the completion. Similar to a case race with beer, but much classier.
"I can't believe Jason drank 6 bottles of champagne before the balldropped, I only drank 2. It's safe to say he won the Champagneship."