Like most insults "pseudo intellectual" is ridiculous because it is not quantifiable. It is simply a personal judgement by the speaker.
If intellectual is loosely defined as a person who learns and cogitates on a subject or subjects that could apply to anyone regardless of class, degree achievement, age, etc. Who is to say whether when I read a book on quantum physics (not my field), ponder, and discuss my thoughts that is pseudo or real intellectual? Frankly I could care less about someone's judgement of my intellectual endeavors. Education is the important part, degenerating or debating the person is a waste of time.