The name refers to a lost screamer video from 2007.
I remember watching this. It was a fake tutorial on how to unlock Luigi. The creator, LotusMan17 (currently inactive) used Toad's Tool 64 for modding the tool. The last few seconds were "Press A on this wall" while we showed Mario running into the wall. At the end, before the credits rolled, we cut to the K-fee screamer.
The screamer was available on YouTube up until 2012. The only known footage of this screamer is from a low quality reaction video called "Little boy getting scared. Late reaction.".
Dude, that brings back memories. I totally fell for one of those 'Luigi unlock' videos back in the day. Must've been this one or something similar. Spent hours banging Mario's head against walls in the castle. Lol, the good old days of wild internet rumors and scary pop-ups. Anyone else get duped by these?