These dedicated individuals are comprised of males and females with a goal of making the Trojan fans as loud as possible to intimidate their opponents and create an atmosphere of support for Trojan Warriors.
Because gypsies who worked as fortune-tellers for non-gypsies played up their "exotic" dress to impress and intimidate customers, it is assumed that this is how they dressed at all times, when that was not actually the case.
Usually the color matches the rest of the team, but it doesn't necessarily have to; some goalies like to have their own particular colorful design on their jersey, often to intimidate the other team.
Limewire has filed a countersuit against the record labels, alleging that the labels resorted to illegal business practices to intimidate potential Limewire customers.
While nothing makes quite the same statement as a full body tattoo, the look itself can intimidate many people and make it hard to compete in the corporate job market.