Fandom Twitter slang, A setup account is a profile created by another fandom made to make another fandom look bad. The fake profile will generally tweet out offensive stuff.
“Did you see that (fandom name) account that made 9/11 jokes?”
“Yeah, I think that was a set-up account.”
“Yeah, I think that was a set-up account.”
by Han”IClappedLeia’sCheeks” Solo February 4, 2021