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Acronym for 'Fuck It & Sleep In'

You know, the days when you wake up feeling overwhelmed: You have a headache. You've hardly slept because the neighbors were fighting/having sex/getting raided by the cops, you awoke early to the sound of barking dogs and vomiting drunks walking home from the club, You forgot to change your alarm clock for daylight savings and it went off an hour early, at breakfast time there's no toast because the bread is mouldy, no cereal because the milk has turned, no porridge because the rat in the cupboard ate it, and no chance of a McMuffin because you've lost your wallet. You hate your boss, the new departmental manager has been on your back for weeks, the customers are giving you the irrits, you suffer from anxiety from having to deal with the people in Human Resources, and it all just gets a little bit too much....

FINSI!
WTF !!

I CBA to go to work.

Bugger it all, I'm having a FINSI day !
FINSI by KeithMyArthe September 4, 2011
Related Words
finsta foing foist foine foink Feinstein Finski Finsexual Flinstoning Foilsick

Foilsick 

Feeling ashamed after revealing a little too much of yourself to someone - allowing them to clear a view on your pettiness, your anger, your cowardice and childlike vulnerability - wishing that you didn’t have a deep disdain for who you think you actually are.
Jim- I’m feeling very Foilsick right now.
Bob-why?
Jim-I told this girl about how I’m feeling/my emotions.
Foilsick by Ej<3 January 18, 2022

Finsexual 

A Person who is attracted to other people who are Feminine In Nature or (FIN), usually used by Non-Binaries but Binary People can use it too.
I like that girl, I like that trans girl, and I might like that twink guy. Because I am finsexual.
Finsexual by Bob Tistabalm November 17, 2020
See what a finski can do to a person's attitude? He's going to treat it like a beautiful woman
Source: Ferris Bueller's Day Off
Finski by smithword November 10, 2014
A spam Instagram account where people post what they are too afraid to post on the real account
Did you see Chris's finsta? It is so funny.
Finsta by rantmonster2319 June 16, 2016

Foinkadoink 

Could be used as an insult or as something to swear too. Commonly used by dinksters
Goddamn foinkadoink!
Foinkadoink by Dinkster July 22, 2019