A manipulative tactic/method used to indirectly claim it was not apparent to you that a third party was present during your conversation with yourself, and the second person. (Typically used to be seen as generally higher in most aspects as in, talent, skill, and morality. Or to lie towards the second person as to appear to think it is just the two of them talking.)
-While a third person is present behind person one (the manipulator)-
Person 1: Dude, you know, and I know I didn’t steal that thing, so just stop trying to falsely accuse me. We both know you’re just trying to get me in trouble.
Person 2: -Actual Confusion-
Person 3: Person 2, you lied about him!?
Person 1: Oh wow hi person 3 didn't know you were here..
Person 2: Wh- no!?
That’s rontoflation. If you ever find yourself in a similar situation to that then that person is probably a rontoflator.
“My friend keeps using rontoflation against me”