Original slang (i.e., invented and used by a very small group) meaning vagina.
Originates from hilariously flawed voice-simulation algorithm (in which "vasheen" sounds like "vagina" and vice versa).
'Hello, my name is Fabio, and, today, I will teach you how to rub lotion on your vasheen.'
by female_x July 22, 2009
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