Top definition
too long a time to describe with numbers
I haven't hung out with my friend in billeniums!
by Marilulu-Butters January 02, 2011
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2
Multiple sets of 2000 years.
Life shouldn't see what will happen in the third billenium, which is two billenia too long.
by t3hyoshi March 16, 2015
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3
too long of a time to even be described; TOO DAMN LONG; billeniums
I haven's hung out with my buddy in billeniums
by Marilu-Butters January 02, 2011
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