the bit of skin between the ass and balls
i made her lick my perennium before i came in her eye
by Oscar February 20, 2003
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Isnt that some sort of flower?
What the hell is a perennium?
by Jonballz February 11, 2004
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The thing that looks like a face when you stand in front of a mirror and bend over while looking at your ass from behind yesterday for the first time.
"look at my perennium"
by John Mc Bastard-Face May 1, 2003
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Getting an enema every year, usually during the spring season.

see the term used for more than one of such sensation; perennia
My proctologist says that he thinks I'm due for my perinnium. I think he's just gay and wants to see my ass...I mean he gets paid to do it anyway.
by JB2003 August 14, 2003
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