when you took an picture with your camera or iphone and notice it looks good on the first sight but if you look cloesly enough you see and notice things that shouldn't be on an foto/picture but looks awesome as well.
Tom: hey steven i took a picture of the amusement park i was in at Monday
Steven: hey Tom yeah you seem to have fun on that one but hey who is this man in the mirror?
Tom: Man in the mirror?
Steven: yeah take a look
Tom: oh yeah ahhh now i see it he looks kinda spookey i think i've took an ghostpicture,wait i upload this on twitter and facebook.