You are a total freak!

[keannu]

In Korean, "freak" is translated as "monster" as the most similar word seems to be "monster".
When you say someone is a freak, a person showing extreme weird behavior or lifestyle, what does it exatly mean? I think "monster" is an exaggeration of it, so there must be a proper term for that.

Ghost Whisperer
ex) Melinda's friend to Melinda who can see ghosts - You are a total freak!!!

 

[5jj]

In the broadest terms, it means somebody who acts in a way very different from normal behaviour.

 

[SoothingDave]

In this case, she is a "freak" because she has some talent that is abnormal (the ability to see ghosts).

Freak show - Wikipedia, the free encyclopedia