I had seen that video before XD XDXDXXDXDXD It's also a traditional stress relief

Wow. Hilarious! I've gotta go watch that video.

(sorry not logged in)
That was hilarious. I have to watch that video now.

It's because of this kind of fanfics that turns my research mode on. Because of my curiosity, I ended up looking this thing up in the net.

My results:
This happening is called "Flogsta scream". A weird tradition done by University students at the Flogsta neighborhood. They do it every night at about 10 pm. Nobody knows how this tradition started. Some say that its a fun stress reliever after exams and it turned to a daily habbit. Others say that it is a remembrance of a student who commited suicide during the 1970's.

Just wanted to share my findings.

i just watched the video. Now i want to join in that randomness xD

so cuuuuuuute