Post Harry Potter Sadness (also abbreviated as 'PHPT') is a mental condition where once an individual finishes watching/reading Harry Potter, they realize that the ships in Harry Potter are not together in real life and magic is non-existent as well since (almost) everything is scientific. Reportedly 95% of the people have this after finishing the series. Many try doing magic themselves, but doing so only disappoints them. PHPT can be temporary or everlasting. (PHPT occurs commonly in females on the realization that they cannot date 'Draco Malfoy')
"I just finished Harry Potter!"
"Oh, you'll have PHPT soon just like we all did."
"What's that?"
"Post Harry Potter Trauma."
"Oh."
The penis wielding party must shave all pubic hair by the end of October 31. Then during and for the entirety of NNN they must grow out their pubic hair anew. At some point in the following December they must have intercourse during a full moon. And when said penis wielding party climaxes they have to yell out "Ayo, I'm Harry Styles innit!"
"I shaved my balls n stuff a while ago, now them thangs is hairy girllllll."
"Oh would you look at the time, it is a full moon."
*at the same time*
"Sex?!?!"