From Millon: “Rarely physically abusive, anger among narcissists usually takes the form of oral vituperation and argumentativeness. This may be seen in a flow of irrational and caustic comments in which others are upbraided and denounced as stupid and beneath contempt. These onslaughts usually have little objective justification, are often colored by delusions, and may be directed in a wild, hit-or-miss fashion in which the narcissist lashes out at those who have failed to acknowledge the exalted status in which he or she demands to be seen.” (Millon, 2011, pp. 408).
In these attacks, the reasoning systems of the brain are being inhibited. This accounts for the “irrational” and “wild, hit-or-miss” nature of these attacks. The brain containing this particular set of damaged information structures cannot form a reasoned line of argument so it just throws out every possible attack – rational or not – and sees which one takes hold, which one gains some traction. And whichever attack or allegation gains traction, that’s the one if follows up with.