Scratchitti is a form of
graffiti that's made by
etching and carving your
tag on an object instead of using tools like
marker ink or
spray paint.
Most commonly this is seen on the glass on
subway doors,
bus windows and
school desks.
Popularity for scratchitti has risen over the past decade as more cleaning agents were developed that eased the cleanup of traditional graffiti. Scratchitti permanently damages the surface thus giving it a longer lifespan. It's much cheaper to paint over a wall with graffitti than it is to replace an entire window covered in scratchitti.