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 contest/event where a bunch of guys get together to compare the length and girth of their semi's. The winner receives respect, a..
1.
A very close friend that one would call upon in a time of need.
"money or murder, you my n***a, my jelly preserver. Ima ride, baby..