/faɪ/
The acronym FAI, meaning "Fuckass Idiot," is a vulgar, compound insult used to describe someone deemed exceptionally stupid, incompetent, or annoying. It acts as an intensifying label to emphasize a person's lack of intelligence or poor behavior. It combines three distinct layers of English profanity and pejoratives to maximize the intensity of the insult.
Fuck: Used here as a profane intensifier to heighten the emotional weight of the insult.
Ass: A vulgarism for "buttocks" or an "objectionable person," often used in slang to denote someone acting in a contemptible manner.
Idiot: A common noun describing a foolish or stupid person.
The acronym FAI, meaning "Fuckass Idiot," is a vulgar, compound insult used to describe someone deemed exceptionally stupid, incompetent, or annoying. It acts as an intensifying label to emphasize a person's lack of intelligence or poor behavior. It combines three distinct layers of English profanity and pejoratives to maximize the intensity of the insult.
Fuck: Used here as a profane intensifier to heighten the emotional weight of the insult.
Ass: A vulgarism for "buttocks" or an "objectionable person," often used in slang to denote someone acting in a contemptible manner.
Idiot: A common noun describing a foolish or stupid person.
1. "Look, I'm not trying to be a FAI, but if you plug that toaster into the power strip next to the sink, we are definitely going to lose the house."
2. "He sat there like a total FAI while his tacos fell apart in his lap, apparently forgetting that gravity applies to carnitas too."
3. "The driver in the left lane was acting like a complete FAI, going twenty miles under the limit with his left blinker on for three states."
2. "He sat there like a total FAI while his tacos fell apart in his lap, apparently forgetting that gravity applies to carnitas too."
3. "The driver in the left lane was acting like a complete FAI, going twenty miles under the limit with his left blinker on for three states."
by gummibear67 February 3, 2026
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