Borf was a graffiti

Graffiti

Graffiti is the name for images or lettering scratched, scrawled, painted or marked in any manner on property....

 campaign seen in and around Washington, D.C.

Washington, D.C.

Washington, D.C., formally the District of Columbia and commonly referred to as Washington, "the District", or simply D.C., is the capital of the United States. On July 16, 1790, the United States Congress approved the creation of a permanent national capital as permitted by the U.S. Constitution....

 during 2004 and 2005, carried out by John Tsombikos while studying at the Corcoran College of Art and Design

Corcoran College of Art and Design

The Corcoran College of Art and Design, , founded in 1890, is the only professional college of art and design in Washington, DC, located in the Downtown area. The school is a private institution in association with the Corcoran Gallery of Art.The Corcoran Gallery of Art is Washington's first and...

. This four letter word was ubiquitous around the Northwest

Washington, D.C. (northwest)

Northwest is the northwestern quadrant of Washington, D.C., the capital of the United States, and is located north of the National Mall and west of North Capitol Street...

 quadrant of Washington, and ranged from simple tagging to complete sentences to two-color stencils to the massive defacement on an overhead exit sign from the Theodore Roosevelt Bridge

Theodore Roosevelt Bridge

The Theodore Roosevelt Bridge is located in Washington, D.C. It carries Interstate 66 and U.S. Highway 50 over the Potomac River near the Kennedy Center, connecting the Rosslyn area of Arlington, Virginia, with Washington...

 to Constitution Avenue

Constitution Avenue

In Washington, D.C., Constitution Avenue is a major east-west street running just north of the United States Capitol in the city's Northwest and Northeast quadrants...

. Tsombikos was arrested on July 13, 2005 after tips led police to his latest tag.

The graffiti was also reported to have appeared in New York City

New York City

New York is the most populous city in the United States and the center of the New York Metropolitan Area, one of the most populous metropolitan areas in the world. New York exerts a significant impact upon global commerce, finance, media, art, fashion, research, technology, education, and...

, San Francisco, Raleigh, North Carolina

Raleigh, North Carolina

Raleigh is the capital and the second largest city in the state of North Carolina as well as the seat of Wake County. Raleigh is known as the "City of Oaks" for its many oak trees. According to the U.S. Census Bureau, the city's 2010 population was 403,892, over an area of , making Raleigh...

, Rome, Italy, and elsewhere.

In 2009, director Paris Bustillos created a documentary film about the campaign entitled Borf!.
The campaign attracted widespread attention without first explaining its motivations.