a girl who is only good looking in the thumbnails of her Facebook profile or even twitter. After enlarging the photo, you find out that the girl is actually not good looking at all.
guy 1: holy shit dude, who's that girl????
guy 2: dude i don't know lets go check her out. she looks hot in the newsfeed
*enlarges the photo
guy1: holy fuck she's ugly
guy2: well shit, that's thumbnail beauty right there