The anniversary for an individual to be single. Generally a year, but could be used for any time period as long as you place the duration in front.
"Single and always ready to mingle! Happy eight months Universary!!"
by CNKK217 September 29, 2012
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a universal anniversary (basically a holiday)
The whole world had their 1st Universary of the survival of year 2012.
by Shuck N' Jive November 06, 2009
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