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1.
Rudely cutting into conversation to question or contravene someone's last statement. Provoking controversy with a hidden motive to embarrass or debunk a target whilst remaining unoffensive.

A close relative to white-knighting, though does not provide benefit to the aggressor. Mainly the result of jealousy or general butthurtedness.
boy: "Woah that's like the time we were hanging in the park."
girl: "That makes no sense. What are you talking about?"
boy: "Wow, stop anaing me!"
by That Random September 27, 2012