PENIS!!!!!!!!
Elmo yelled who wants to see my giant red furry juicy peary PENIS!!!!!!!! PENIS Pen 15
by PenisCockLover69420 January 21, 2017
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Someone might ask you to join their pen club, but they already have 14 members so you can become 'pen 15'. They will write this on your arm so it will be defined who you are! Never turn down someone who asks you to your pen club
"hey wanna join my pen club? youcan be 'Pen 15'!"
by Vinny Eoh April 11, 2019
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a club which only cool people can b in
im in the pen 15 club and ur not...chekc my hand! ha it says pen 15!
by tu madre June 23, 2003
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Pen 15 is were you are the complete dumbass who thought he was being funny by writing Pen 15 on your paper instead of penis.
Oh shit ... I wrote penis, I should write Pen 15
by David Gayaway March 17, 2016
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a gradeschool prank usually you would write:

Pen
15

on your hand, then ask if they wanted to join the pen15 club. it worked best if you had a bunch of people do it. then you would get them to go through the secret ceramony where you would write "pen15" in the so that it looked like you wrote "Penis" and you would point and laugh. best done with sharpie marker.
dude: Hey I joined the pen 15 club!
chick: Pen 15 club my ass you have penis on your hand, get the fuck away from me!
by maxzilla April 25, 2005
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When a girl has taken dick with out a condom, the guy came in her. And she liked it, the guy writes pen 15 on her hand. She is now part of the pen 15 club.
John had to take my hand and write pen 15 on my hand at the dentist. Then the receptionist said, "ah huh, pen 15 club." Then i ask what that mean. He tells me then i smack him.
by Misty Dawson September 2, 2006
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