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derogatory term for overweight neck beard male fans of the anime inspired video game series "Persona". The term comes from the name of the company that made the games called "Atlus" and the fact that many fans of the franchise are obese male weeaboos.
"I saw a fat guy at the local game store today browsing anime themed games"
"it was probably a fatlus"
Fatlus by Madzaku January 13, 2009
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A nickname to call the Japanese video game company, Atlus, whenever they make the most questionable business decisions ever.
"Persona 3 Reload is on Nintendo Switch 2, but it's 30fps with frame-pacing issues! Typical Fatlus!"
"It's been 9 years and nothing about Persona 6, and they keep releasing remakes, what the hell, Fatlus?!"
Fatlus by RealPoi_15 November 3, 2025
Related Words

fallusious 

Someone or something that's cool as fuck
Those new shoes are fallusious
A fat piece of shit and loud and annyoning and will never find love and should kill himself and went to new world prep
Eww its a fatlos
Fatlos by Carlos's fat ugly mom November 2, 2019
Suck my fallus bitch!
fallus by Minecraft1238 January 25, 2019
Did you see her big ass, her name should be Fatush!
fatush by freedom boy June 14, 2009

Fatlos/(piglos)

A fatty,ugly,bitch form New world prep( mckee)and trash at soccer name carlos.
Hey you eat to much, your such a fatlos/(piglos)