A mixture of sweat, glitter, glow stick juice, and cigarette ash that accumulates on the floor and people's clothing at raves and EDM festivals.
"Dude, I had to trash my blue Kikwears. The raver grime stain was up to my thighs!"
"Bro, go get your friend. He's trying to drink a puddle of raver grime with a straw!"
by Jo_Momma_Jess February 21, 2019
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