What is Seanniversary?
1.
A Celebratory Orgy celebrating the anniversary of a new friend being introduced into an established clique.
A group of buds have been an established clique for two or more years, and they allow a new guy in, and after a year of his inclusion, you celebrate his "Seanniversary"
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A nickname for the set of US highway 71 in Kansas City, Missouri that stretches from 39th street to 71st street. Most violent crimes in ..