PLYSU

A situation where, under repeated questioning, somebody's previous mental state changes as a direct result of the questioning. Example: A: Are you ok? B: Yes, fine. A: Are you sure? B: Yes. A: No, seriously, are you ok? B: Yes. A: Are you sure? B: Dammit! Stop asking me. I've already told you. A: Ah, you're not okay at all. B: Look, it's just a plysu thing.