(dictionary.com's definition) THUMBNAIL-A reduced image of a graphic or document page, used in order to view multiple images on a screen simultaneously or to download such images more rapidly. Hence, you are able to see what the image is prior to clicking on it. To the ones like this fucking moron who are not computer literate, it means that you do not have to fucking click on a picture just because your cursor turns into a cute little hand. Let your brain control the movements of your hand and keep telling yourself that you do not have to click on the pic of something that offends you.