My concentration span is very short. What do they call it? Whatever.
Seth Rogen, girlfriend of the year award.
Reverse graffiti, also known as clean tagging, dust tagging, grime writing, green graffiti or clean advertising, is a method of creating temporary or semi permanent images on walls or other surfaces by removing dirt from a surface. It is often done by removing dirt/dust with the fingertip(s) from windows or other dirty surfaces, such as writing ‘wash me’ on a dirty vehicle. Others, such as artist Moose, use a cloth or a high power washer to remove dirt on a larger scale. - Source