Chain Jack is a misheard lyric from the song "Bitter Sweet Symphony" by The Verve.
Origins[]
This originated from a conversation during the Donkey Kong Country 2 full playthrough[1] at the start of Easy Livin' 2019. At the start of the game, the Allies were discussing the joy of chain jumps in video games. That reminded Isla of the misheard lyric, "chain jack" which the Allies and Chat tried to solve what the song was.
The actual correct lyric was "No change, I can't change, I can't change, I can't change" from "Bitter Sweet Symphony" by The Verve.