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2.
This is where from being in a dusty area, you form small rocks in your nose from the collected dust. They look similar to popping rocks.
Bloke 1: Man this stupid dust in sydney, given me snot rocks.
by Klarc198 September 23, 2009

Words related to Snot Rock

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1.
A Snot Rock is a rock of mucus located in either the mouth or the throat. It is usually formed overnight when sitting mucus begins to harden. It is very disgusting and I myself have only witnessed it one time.
So I woke up this morning and as I'm about to get in the shower, I feel the need to cough. After I cough I feel a lump in my mouth and so I spit it out and a Snot Rock comes flying out.
by Pantho May 27, 2009