1. An elderly woman's vagina, dusty after years of neglect

2. Any vagina that hasn't been used in a long time
That chick never gives it up, she probly got a dusty shelf.
by johnny bunz June 7, 2006
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After having sex with a girl you cum on her and smear it every where.
Last night my boyfriend gave me a dusty book shelf.

I gave my girlfriend a dusty book shelf the other day.
by noah123321 December 5, 2011
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