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Dumbfuckalitis is a severe disease commonly affecting millions of people in their workplaces across the world. The disease causes them to become dumbfucks (see definition). A bad case of dumbfuckalitis also causes laziness in said dumbfuck.

It is also known for dumbfuckalitis to affect people outside of the workplace.

Seems to be very prevalent in Great Britain.
Boss, "My HR manager hired a dumbfuck who has now spread dumbfuckalitis in my company and now I have to lay them all off. FFS!"
by Cjks January 07, 2016
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