This is an excerpt from the Longman Dictionary Of Contemporary English.
freak out
phrasal verb informal
to become very anxious, upset, or afraid, or make someone very anxious, upset, or afraidPeople just freaked out when they heard the news.
freak somebody out
The whole idea freaked me out.
I'm curious whether freak out has the meaning of "make somebody angry"?
Best Answer
To "freak somebody out" is to startle or upset or scare them. They can get angry as a consequence, but that is not the direct meaning.
Both first sentences use "freaked out" to express consternation. But the consequences are different in each.