The group name "excogigirls" might be a combination of "excogito" or "excogitate," but that's more of a Latin root. Alternatively, "exco" could be a prefix or part of a brand. Maybe "exco girls" is a brand or a team. The numbers in the name could indicate a chapter, a year, or a date significant to the group.
Wait, "thi" could be a misspelling of "this." If the group's tag is something like "This Patched," perhaps they are known for creating or curating patches, be it software, fashion, or something else. Alternatively, it could be a play on words or a hashtag they use to market themselves. excogigirls 24 07 31 amber bella and harley thi patched
Also, the term "exco" might be part of a larger organization or a brand name. Maybe they're part of Exco Industries or Exco Foundation? Or perhaps it's short for an acronym related to their field. The group name "excogigirls" might be a combination