Top definition
A penisanus is an incompetent old person, like a fossil, mostly wearing glasses, major brain damage and acts like a sloppy dick throughout the day.
A penisanus does not have girlfriend, is a virgin and in his sparetime you'll find him jackin' it to german internetporn
You can't teach that penisanus anything, he's way too stupid.

That penisanus has been jackin' it 'till he got a raphke on his weener!

That turd is more intelligent than a penisanus.

There's something wrong with that dude... He might be a penisanus
by Danny Frings February 25, 2011
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2
A shortened version of the insult "penis up anus" which is used as a greeting.
Jonny: Penis anus.
Jimmy: Hi Jonny.
by Phil January 16, 2004
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