What does SOOI stand for?

Stay Out of It

SOOI is an acronym that stands for "Stay out of it," which is a quick way to warn someone not to get involved in a conflict. The acronym is typically used online and in text messages. You most likely will see the acronym if you try to interject your opinion in an argument between other people. It's a good warning to heed unless you're looking to get cut down by verbal crossfire. Some examples of conflicts that you should stay out of include quarrels between family members and spouses.