Top Definition
penis + genius
1. Extraordinary male sexual prowess.
2. A male who exhibits such prowess.
"John Holmes and Casanova were men of penius."

"Hillary was overheard uttering that Bill, although a great politician, was nothing more than a penius wannabe."
by CorradoGong June 24, 2009
12 more definitions
a guy who is incredibly intelligent, but also kind of a dick
Manders found the cure for cancer, but then he called my mom a slut. He's such a penius.
by Rosseus April 29, 2008
Someone with excessive knowledge of the male genitalia.
My girlfriend is a penius.

Most males become peniuses during puberty.
by NAYL January 26, 2005
very smart person who is a dick.
Steve Jobs, from what Ive heard, sounds like a total penius.
by blozzy September 14, 2013
A penis which is more intelligent than it's owner.
1. "I was about to hook up with this fifteen year old girl, but my penius wouldn't get hard."
2. Man #1 - "Dude, I had major whiskey dick last night"
Man #2 - "Naw bro, your penius saved your ass - that chick was a straight troll."

Man #1 - "Thanks penius!"
by Spiral Dancer December 21, 2014
orig. from Ralph and some hollowhead.

Someone with excessive knowledge of the male genitalia.
My girlfriend in a penius.

Most males become peniuses during puberty.
by NAYL January 25, 2005
Someone who believes they are a genius but really they're just a penis. A smart-ass.
Aren't you a penius. Wow, what a penius. Thanks a lot penius.
by ffry444 May 15, 2013

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