Noun, A person who exhibits such an amazing lack of common sense, you wonder how they even have the brainpower to run even the most basic autonomic functions. Small rodents and credenzas have an intelegence greater than the average peen. (Note: if you know what a credenza is, you, by default, are NOT a peen although it does not make you immune from exhibiting peenish behavior)
On the surface, it seems that many people on Earth today are peens but the title of peen is reserved for those special type of people that invoke an uncontrolable urge to yell or to hit people with sticks. In the United States, it is still illigal to kill, maim or otherwise harm peens although there are some that suggest that if being a peen was painful, people would avoid exhibiting peenish behavior.
Related words:
Peenish and/or Peen-like: used when someone isn't atually a peen but they are exhibiting behaviors that closely resemble that of peens.
See also Muggle
Driver X just tore past me at 85 mph, cut me off and then slowed down to 10 mph under the speed limit. Driver X is a peen.

The total for my fast food order is $5.98. I handed Cashier X $11.00. Casher X handed me back my $1 bill, because Cashier X did not graduate 4th grade math. Cashier X is a peen.
by Fyrewolf Seahawk November 16, 2006
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An appendage coming off of a building. Aka a wing.
Fritz decided to build a peen on each corner of the new base.
by peen lord February 12, 2019
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Flirting, to flirt with intent to achieve.
"Dude, you planning on peening with her this weekend?"
by Ak123456789 November 6, 2006
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The end result of preparing or cooking English peas inside their pods.
Mom: You guys like how I cooked those peas?
Dad: Are they peas or beans?
Justin: Beans, I think.
Dad: I thought those were peas.
Joe: That's what you'd call a peen.
by J. T. Holland September 27, 2006
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1. n. slang. Male genetalia.
2. v. The word used to describe anything and everything a certain kid named Nathan may be doing at any given time.
hey susie! wanna see my peen?

oh my god nate! stop peening! nobody wants to see that.

by L_unit January 13, 2006
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A word used to describe the male genetalia."I'm the peen queen"
"Edie is not the peen Queen"
by OldFourNipsNeil March 6, 2014
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An alternative/shortened version of the word " Penis "
"Someone just sent me a picture of a peen."

" 'Penis' sounds like a monster. 'Peen' is like a cute lil stuffed animal."

"I got my peen shot off in Nam."
by Dontbesadstayrad August 10, 2015
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