No, that is exactly the over-broad, willy-nilly, tossed-around definition they were talking about. Gaslighting has a much more insidious context than simply making someone question themselves. It means doing it on purpose; intentionally lying to someone and trying to convince them that they’re crazy. Like if I said I was going to the grocery and then when I came back with nothing, I insisted I never said that. Or if i borrowed $50 and when it came time to pay you back, I try to tell you I only borrowed $25. It’s inherently deceptive and cruel.