Top Definition
The only way you can say penis is Runescape. (Pronounced Pine-is)
Hey dude... my pinis itches!
by L.E.K. September 22, 2008

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A miraculous combustion or awesomeness. A perceptible interruption of the laws of nature, such that can be explained by divine intervention.
I gave her a mouthful of Pini
by 4Serious June 12, 2009

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1) Yeh Unl33t3st un-ub3r1st p3rs0n teh 1s.
2) Also the word Pini describes the expulsion of semen from a donkeys erect penis.
Omg look at that donkey! Its Pinulating!
by John October 20, 2004

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A penis that is exactly 3.1415... inches long, or the value of the number pi.
Sleeping with my math teacher was disappointing as he had a pi-nis.
by Meme Princess June 30, 2016

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a semicensored version of the word Penis.
Pinis can often be mistaken for Penis, but its not really mistaken. Just if you want to be creative.
by GothicDeathVR2 August 07, 2008

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The baby stage of the adult penis.
Unfortunate Man: Doctor, what do you think is wrong with me?
Doctor: Well you see it's a simple case of a pinis
by Kudrough June 19, 2008

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A hobbit sized penis
The Baggins line ended with Frodo because every girl laughed at the size of his pini.
by TerminalCrowbar April 13, 2016

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