freak freak /ˈfriːk/

noun

1. () A person or animal that is markedly unusual or deformed  ( lusus naturae , monster , monstrosity , freak )
   a person or animal that is markedly unusual or deformed
     The circus had a sideshow featuring various oddities and human freaks.
   The circus had a sideshow featuring various oddities and human freaks.
   
   
2. Someone who is so ardently devoted to something that it resembles an addiction  ( addict , freak , junkie [Informal] , junky [Informal] , nut [Informal] )
   someone who is so ardently devoted to something that it resembles an addiction
    A golf addict
   a golf addict
    A car nut
   a car nut
    A bodybuilding freak
   a bodybuilding freak
    A news junkie
   a news junkie
   
   

verb

1. Lose one's nerve  ( freak , freak out [Informal] , gross out [Informal] )
   lose one's nerve
    When he saw the accident, he freaked out
   When he saw the accident, he freaked out