Jackspedicey is a mispronunciation of the name Jacksepticeye ,made by a person(Jesus on fiverr) , who was paid by Pewdiepie to make an advertisement to his deleted channel Jacksepticeye2.
A very loud irish youtuber. He is also the BOSS of BOSSNESS! Having over one million subscribers on youtube, he keeps a close connection to his fans. Did I mention he is BOSSSS?