A person who constantly says stupid things or has stupid opinions
Justin: I think Fallout 76 is the greatest Fallout Game in the entire series.
Joey: Don't be such a rotundus all the time, Justin!
by PolarisKnight January 30, 2020
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a species within the larger frumpalufagus genus, specifically characterized by notable roundness, in addition to the more general characteristics of the frumpulafugi which include a dissheveled appearance with little attention to hygiene, grooming, or physical fitness.
"Walking down the street I found my path impeded by a frumpalufagus rotundus whose body caused such an obstruction, I was forced to walk behind it and watch it waddle down the sidewalk.
by rampant1 January 25, 2007
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