photocrashing 

PhotoCrashing is the art (mostly a dynamic art) of crashing a photo or picture in the last second. The appearance of a person who does not belong in a picture at the very moment of taking the picture.

Victor jumped into a picture just a few miliseconds before it was taken. He is photocrashing the pictures.

photocrashing by Victor Mendez June 11, 2006

photocrapping 

Taking crappy photos. Photocrapping.

He is such a bad photographer, he is a photocrapper.
He isn't photographing anything, he is photocrapping.

photocrapping by WeDoShe September 19, 2010

photocracking 

The art of bending your finger on the top edge of a camera to make it appear that the subject is facing the crotch of a naked human.

Dude! I am photocracking you right now!

photocracking by Axe Grinder August 15, 2011