Fiendish fiend 

Someone you absolutely despise because they have annoyed you for so long. Usually used in a comical, or sarcastic sense.

Person A: You Fiendish Fiend!
Person B: Hah! got your nose!

Fiendish fiend by Lord Jonathan Elton June 9, 2015

fiendish 

Devilish,spiteful,,frightening,alluring ,

The masked man said in a fiendish manner...
It was a fiendish place to look at...
The girl danced in a fiendish manner...
Grimly Fiendish...The Damned

fiendish by Fiendish Female April 21, 2006

fiendish 

Used to describe something (eg. an all-nighter) a bit mad/crazy/wicked etc. for various reasons, usually relating to alcohol/drug intake.

"did you see how many bennie's kel did last night?!!"
"yes! he had such a fiendish one the nutter!"

fiendish by little sister of eluria July 1, 2006

fiendish 

the way to be.

Did you see that girl? She was so fiendish i got a stiffy!

fiendish by FiendishPhoenixx February 3, 2004

Fiendish 

Fiendish: A Scottish catchphrase

The quality or state of fiendishness/being fiendish.

Can refer to sex, cool things, cute things, difficult things and things that capture the essence of spooky, radicalness and more.

"We were fiendish last night" 😏

"That's so fiendish!" 😈

"My dinner was so totally fiendish"

"That music artist's new album was hella fiendish."

"My gym session was so fiendish!"

Fiendish by Lil Fiendy November 28, 2021

Fiendish 

A word that describes pathetic action of people who talk shit

Did you hear how Sam was talking about matt? That’s some fiendish shit.

Fiendish by Swaggy chick May 20, 2022