What is Booger Vault?
1.
A 
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.
2.
The inner "watch pocket" of a pair of jeans, when employed by a 
Oh my God, watch out - he's getting into his booger vault!
See 
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A respectable hustler does not accept loose change, only bills
I won't take no quarters from you, damn crackhead!
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A sexually transmitted disease that has no cure. usually herpes.
I heard Phil has been hammering Kirsten. And I heard she has a case of..