The act of shaking up champagne bottles and popping them, thus spraying your friends and yourself with large quantities of champagne in an act of celebration.
The act of your partner ejaculating into the air as if they are popping a celebratory champagne bottle. Your partner then attempts to receive the cum in the air with a "yummm yumm yumm" sound as though they are a goldfish feeding on tasty food flakes.
A golden champagne shower is when the giver has eaten pinapple prior to the act.
Pajama casual is a term used when working from home and preparing for a video conference. All business above the waist and your pajama pants down below.