This is so true! My narc would re-define words within the same conversation to suit his needs at the moment. I never knew if a word would have the same meaning from day to day, making it impossible to defend my self like “all thinking adults can do.” You see, he valued debate as a tool to “higher understanding” and lectured me often about how I had to be ready at any moment to defend my opinion. He liked to test me by changing his point of view on whatever subject struck his fancy at the moment and then chastise me when I didn’t take the opposing view. You know, just for fun. Crazy making in the extreme!
The Concise Dictionary of Narcissists and Sociopaths