A label slapped on anyone bearing the trademark UFO pants, kandy jewelry, Visors, Glowstrings/Sticks/Ect, Multi-colored hair, Funny backpacks and listens to the genre formally known as rave music.
The term has lost its meaning seeing as the culture has died out due to government meddling. Anyone who still calls themself a raver is very un-hip and is looked at as a poser for trying to ressurect the term.
You look at someone who calls themself a "Raver" the same way you would someone who calls themself a "Disco Dancer"
-- At a modern club somewhere in the world --
clubber 1- " Oh god, look at that loser raving with glowsticks"
clubber 2- " He thinks hes a raver, what a poser, he's 10 years too late "