Noun
-
someone who is so ardently devoted to something that it resembles an addiction
"a golf addict"
"a car nut"
"a bodybuilding freak"
"a news junkie"
-
a person or animal that is markedly unusual or deformed
- lusus naturae
Verb
-
lose one's nerve
"When he saw the accident, he freaked out"
- freak out - gross out