An old grade school prank. You'd write Pen 14 on your hand and walk up to an unsuspecting schoolmate and ask him if he wanted to join telling him he could be Pen 15. You'd then write Pen 15 on his hand, and everyone would laugh at him.
by Ritley August 24, 2003
by webstersheir62 February 28, 2003
by Ninoots! March 25, 2014
by purplemonky November 11, 2003
by Daddys cunt 💦💦💦 March 25, 2019
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
by Vinny Eoh April 10, 2019