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A person who recklessly blows his nose and gets snot all over everything.

For example a tennis player who uses a finger to block one nostril then blows out the other nostril onto the court, not caring whether his opponent might slip on the snot after they change sides.
Andre Agassi is not only a US Open Champion, but also a Snotmaster of the highest caliber.

When his opponent slipped on his tennis court snot and was injured, Andre was awarded the match by default.
by Flatiron Scheisskopf June 30, 2016
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