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The sound snot makes as it exits the nasal passages and hits 1 or 2 ply paper at full force.

You can tell when it's coming by a loud SNORT beforehand. Similar to the flash of a nuclear bomb.

Common with sick people and 5 year olds.
"I dropped a can of soup and I swear it sounded like the projectile snot splat Lesly made last week."
by SeventhSandwich[BL] January 30, 2010