"street meme": a sticker, stencil, or poster that can spread a single image around the world. Unlike traditional graffiti art where each piece is unique, street memes can be copied repeatedly, taking on a life of their own, and spreading through the collective effort of people scattered around the world.
This site is awesome! It uses tags to organize a huge growing collection of memes. I saw several stickers here that I've seen in person on the street.
I'm rewritin it,
Mcdonalds sign prank