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A snot rag. A handkerchief.

A piece of cloth in which sophisticated people carry boogers they have extracted from their noses.
A fastidious young lady always carries a booger vault in her purse.
by Bumkicker Slade May 07, 2005
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2
The inner "watch pocket" of a pair of jeans, when employed by a nerd for the purpose of accumulating and storing boogers.
Oh my God, watch out - he's getting into his booger vault!
by Rod Brock September 23, 2005
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