crust around your eyes when you wake up. Ugly people are more prone to it, as are chavs. It is often left unwashed by chavs and grows in to a fungus.
skanks. People with sleepydust around their eyes also often have dried snot on their noses and bake beans stains on their school uniforms
by chav-hater rupi December 11, 2004
The goop you wipe from your eyes in the morning.
Plebs have eye poo, we have sleepy dust.
by Blubina March 02, 2010
The most annoying thing that happens when you wake up. It's like an eye booger.
I couldn't open my eyes because there was sleepy dust in it.
by hi511 June 08, 2014