What is Feens?

Feens definition and meaning on Dictionary terms:
Satan; the devil.
any evil spirit; demon.
a diabolically cruel or wicked person.
a person or thing that causes mischief or annoyance: Those children are little fiends.
Informal. a person who is extremely addicted to some pernicious habit: an opium fiend.

Informal. a person who is excessively interested in some game, sport, etc.; fan; buff: a bridge fiend.
a person who is highly skilled or gifted in something: a fiend at languages.

verb (used without object)
Also feen [feen] /fin/. Slang. to desire greatly: just another junkie fiending after his next hit; As soon as I finish a cigarette I’m fiending to light another.


reference: https://www.dictionary.com/browse/feens