When you know someone is trying to psyche you in a long drawn out psyche and you go along with it and just before they say psyche, you beat them to it. Also someone must be aware that you are attempting a Counter Psyche.
Person A:*Long Story*
B: Oh yea?
A: Yea, and by the way...
B:Psyche?
A:PSYCHE!
B:Owned...Counter Psyche!