Someone who is attending Bonnaroo. It originates from
people who go around the first night constantly screaming, "Bon-aruuuu-uuuuu!" Other adjectives can be used in front of the word to describe what kind of a luder they are. For example, there are
hippy-luders, baby-luders,
drunk-luders, phish-luders, stoned-luders, ect.