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"
See
Random Words:
1.
a fart that sounds like a zipper sound, especially of a sleeping bag zipping sound.
That wasn't a fart. I was zipping up my sleepi..