Nonplus n. A condition of perlexity in which one is unable to go, speak or act further. Puzzled.In other words, the incorrect use of 'nonplussed' has left Katie nonplussed.
You may be nonplussed and not even realize it. As Katie mentioned today: "So many people use it and thinks it means unfazed." It doesn't. Take a look at the noun from which it derives:
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