Big postgame celebration

The crossword question appears to be referring to a phrase or expression that fits into a certain number of boxes, and the answer happens to be “CHAMPAGNESHOWER.” This phrase likely refers to a celebratory event that typically occurs after a significant victory or accomplishment, such as winning a sports championship or achieving a major milestone. During a champagne shower, bottles of champagne are typically opened and sprayed around the room, covering everyone nearby in a fine mist of bubbly liquid. This can be a fun and exciting way to celebrate a big win or achievement, and is often captured in photos or videos as a lasting memento of the special moment.