All of the wedding guests will joyously toss confetti in the direction of the newly weds as they pass whereas the confetti cunt will aim to hit and hurt anyone in sight.
Andy: "I'm going to hit the bride in the face with this fistful of confetti!"
Craig: "Man, don't be a confetti cunt!"
Sam: "What the hell is that guy doing?"
Craig: "Being a confetti cunt"
Bride: "As I was walking from the church, I'm pretty sure someone deliberately hit me in the face with a handful of petals"
Bridesmaid: "Yeah, I saw him. It was that confetti cunt"