Street Graffiti

Characteristics of common graffiti
Some of the most common styles of graffiti have their own names. A "tag" is the most basic writing of an artist's name, it is simply a handstyle. A graffiti writer's tag is his or her personalized signature. Tagging is often the example given when opponents of graffiti refer to any acts of handstyle graffiti writing (it is by far the most common form of graffiti). Tags can contain subtle and sometimes cryptic messages, and might incorporate the artist's crew initials or other letters. One form of tagging known as "pissing" is the act of taking a refillable fire extinguisher and replacing the contents inside with paint, allowing for tags as high as around 20 feet. Aiming and keeping a handstyle steady in this form of tagging is very difficult, usually coming out wavy and sloppy.
Another form is the "throw-up", also known as a "bombing" which is normally painted very quickly with two or three colors, sacrificing aesthetics for speed. Throw-ups can also be outlined on a surface with one color. A "piece" is a more elaborate representation of the artist's name, incorporating more stylized letters, usually incorporating a much larger range of colors. This of course is more time consuming and increases the likelihood of the artist getting caught. A "blockbuster" or "roller" is a large piece, almost always done in a block shaped style, done simply to cover a large area solidly with two contrasting colours, sometimes with the whole purpose of blocking other writers from painting on the same wall. These are usually accomplished with extended paint rollers and gallons of cheap exterior paint.