Quote from Lily in The Perfect Week
Ted: I can't believe you jinxed him. Marshall: He doesn't stand a chance out there. Lily: Okay, question. If I ruined everything, why is Barney totally hitting it off with third-martini-girl over there? Ted: Oh, my God! Marshall: He's gonna do it. Lily: Yeah. See, there is no such thing as a jinx. [all gasp]