When one masturbates to
pornographic material that's extremely perturbing, raunchy, disgusting, or so obscurely erotic that it is hard to
consider it "porn".
Perturbation is NOT a synonym to
disturbation, which refers to the methodology of masturbation rather than the subject matter.
I was perturbating to A Japanese Woman Fries An Egg And Asks You About Your Day the other day and right after I finished I realized how
screwed up it was.
...Then
I did it again the next night and came to the same horrible
revelation.
Perturbation is so great.