a very lethal disease that makes you so incredibly stupid.
Hey bro you have retarditus
by fboiretard April 10, 2019
Get the retarditus mug.
Retarditus, another way of saying somebody is a retard and adding more of an insult with the 'itus' by implying that they have it as a disease.
Daniel "Your such a fuckin twat!"
Person "Yet another case of Retarditus..."
by KtKornStar August 15, 2004
Get the Retarditus mug.