A holiday that takes place in the month of October that entails dressing up as penises and going trick-or-treating.
Also known as "Halloween".
Also known as "Halloween".
Matt: "Hey bro, what are you dressing as for Hallopeen?"
Bob: "A penis, of course. I plan on truly celebrating Hallopeen with spirit this year."
Bob: "A penis, of course. I plan on truly celebrating Hallopeen with spirit this year."
by Cuddlybutdeadly October 12, 2010
 Get the Hallopeenmug.
Get the Hallopeenmug. by Justclowntingz May 14, 2020
 Get the Hallopeenmug.
Get the Hallopeenmug.