Typically afflicts those from the ages of 14-25, who attended the high school of, but not limited to: Emmaus, Parkland, and Central Catholic.

There are primarily white, with gender not being a factor. They can be extremely confrontational, with very little to show for it. Most guys feature the rotund physique, with the lucky ones being skinny due to a high metabolism. Some tote a patch of fuzz that they claim to be a beard. The ladies weigh in between 100 to 250 pounds, and can drink any NFL lineman under the table.

When not staring you down in the hallways or making seemingly subtle yet rather direct facebook statuses about you, they are posting random lyrics by Wiz Khalifa, Lil' Wayne or Mac Miller. Now this wouldn't normally be a problem, but the infusion of rap lyrics combined with a predominantly white population has led them to believe that they can use the N word, profusely. Thankfully at Parkland we have Mr. Bailey, who reminds them to knock that shit off.

Thanks to Lil' Wayne, Mac Miller and Wiz, drugs and alcohol play a major role in their lifestyle. Many of them, both males and females, have DUIs or at least an underage. When not drinking to unconsciousness, they can be seen defecating on your family's most recent purchase from Ethan Allen.

WARNING: Anyone who tells you that they "are tired", more than once a week is afflicted. The severity can be indicated by how many times said individual says so, and trust me, you'll remember after reading this.
Allendownee: "Man, I'm so tired."

Your Average White Kid: "Really? I know exactly what to do!"

Allendownee: "...what?"

Your Average White Kid: "SHUT THE FUCK UP!"

Another Average White Kid: Allendown's Syndrome at its finest.
by Ned's Little Brother May 26, 2011
Get the Allendown's Syndrome mug.