A Person who is clearly an amateur walking around with a point and shoot camera. Acting like he/she is a top notch Photographer.
Look at the creepy douche bag demanding those hot chicks at the bar strike a pose for him, oh good one of them finally kicked him in the nuts. What a Camerateur.
The phenomenon by which a group of people who hardly know each other will instantaneously smile, hug, and act like the best of friends whenever a camera is pointed in their direction. The effect is exacerbated with the addition of alcohol.