fachidiot 

Essentially an idiot savant. A one-track specialist who is an expert in his field, but takes a blinkered approach to multi-faceted problems.

Justin is an ingenious poker player but he is a fachidiot, or, a narrow minded idiot, who thinks he’s a genius at all facets of life and knowledge but usually just ends up annoying and offending others.

fachidiot by ZOOISH August 8, 2022

Flaccidiot 

flaccidiot
/ˈflasɪdɪət/

noun

a stupid or ignorantly foolish person, usually male, possessing an appendage that hangs limply, especially so as to look or feel unpleasant, (e.g.: a limp dick)

- " Did you see Nick Adams is banging on about being an alpha male again?"

"LOLz 'alpha'? That beta cuck is nothing but a flaccidiot with an orange stain around his mouth."

Flaccidiot by Ms. Unformation June 28, 2023

Fastidiot 

Noun

One who is - at the same time - fastidious and idiotic. A Fastidiot will demonstrate a meticulous, sensitive, or even demanding attitude, paying great attention to even the most minute details, while concurrently displaying the idiotic tendencies of a person with a remarkably low intellect and with a poor (even horrendous) capacity for decision-making. Fastidiotic behavior is often demonstrated by individuals exhibiting signs of Stolevrusny.

My buddy Stole is the biggest Fastidiot on the planet. He is a highly-successful professional, he eats healthy and stays super-fit. His car, home and office are all meticulously clean and people joke that he lives an almost monastic existence. And then, every f-ing weekend the guy takes some insane off-ramp straight into the abyss, making decisions as if he is a homeless guy living on the street with no consequences for his actions.

Fastidiot by Dr. Gibberish January 1, 2023

Fagidiot 

Someone who is both a faggot and an idiot

Josh: This barista messed up my coffee again... I told him many times, no whipped cream, but he won't listen. The coffee is disgusting. I'm done with Starfucks.
Dave: Must be one of them fagidiots who add whipped cream to hint to customers they'd like their whipped cream in their mouth

Fagidiot by OffBeatDrummer October 25, 2020

FaBidiot 

A person who shares or posts or news as legitimate information on Facebook without fact checking the source. These posts are often well debunked conspiracy theories or fake news.

Susan is such a Fabidiot. Did you see that article she shared claiming that the Sandy Hook shooting was staged?

FaBidiot by Project Mayhem II April 30, 2020

Fuckidiot 

Literally fuckin' idiot

He's such a fuckidiot

Fuckidiot by PaulReedSmith June 1, 2022

Fastidiotypocrite 

A person (typically of the male persuasion) who is meticulously concerned about accuracy or detail except when it comes to something known as “adulting”. This person is incredibly competent in some areas of their life - particularly when it comes to work or social activities - are often described as the “life of the party,” and people perceive that "they have it all”. The fastidiotypocrite is very quick to point out inconsistent or illogical actions in others but has a blind spot when it comes to their own illogical shortcomings. These significant, hypocritical, and often idiotic blinders are most evident in the areas of household executive functioning, including but not limited to the following: cooking, grocery shopping, noticing messes, cleaning up messes, starting household projects, finishing household projects, and needing step by step directions spoken or written at a third grade or below reading level. Fastidiotypocrisy is also marked by a jarring lack of awareness of all social aspects of hosting that are generally understood as common courtesy.

Ex; Fastidiotypocrites often suffer from something known as “not knowing how good they have it”. They are usually blessed with extremely attractive, very intelligent, incredibly witty, and highly competent partners who spend so much time compensating for the fastidiotypocrite's shortcomings that the fastidiotypocrite stops recognizing that shortcoming altogether, or comes to believe that the household run itself.

After shopping, cooking, hosting a party, and cleaning up, I asked my fastidiotypocrite partner to unload the dishwasher. Every few dishes, he paused to ask what it was and where it went. (Sometimes following up with the imbecile question "do we actually need this?") How can he create strategy at work, yet after 10 years of living together, he can't strategize on where to find the Tupperware cupboard?

Fastidiotypocrite by pitathetoykitten January 8, 2023