A foundational phrase used to react to three specific things (hence the three I’s and no T).
1. Reacting in favor of a statement
2. Reacting against a statement
3. Reacting in the only way you see fit because you just heard by far the most irrational statements known to man and there’s no other way to react
“I could care less if he gets arrested even though he takes of my child”
“Type shiii”