1. The result of bad greenscreening common in simple photography programs such as Apple's photobooth.
2. The missing body parts that occur as a direct result of bad quality photoshop work
1. damn, we need a better backdrop, we may appear to be on a roller coaster, but you got a bad case of digital cancer on your left cheek there
2. whoa! check out that cheap advertisement! that woman has a serious case of digital cancer - her left foot isnt even there!