There was an area in God of War: Ragnarok where Joe thought that he would have to lower the water level and come back to it later.[1] And because the characters were in a boat together at the time, Joe started quoting an old viral video of two people in a boat approaching a drop in the water level where they say "it go down".[2] Then later it turned out that instead of lowering the water level, the ground under the water raised up to allow you to walk on it, at which point Joe said "it go up".[3] This is why Joe and chat still sometimes say "it go down" and "it go up".

References

  1.     “Joseph Anderson Channel Two” video: “God of War: Ragnarok - Better Opening than 2018 (Part One)” at 06:12:29.
  2.     “Rashaun Grey” video: “It do go down”.
  3.     “Joseph Anderson Channel Two” video: “God of War: Ragnarok - Better Opening than 2018 (Part One)” at 06:15:28.