Rotundum 

An exciting game where one must move across a rectangular board in any direction, when 2 players meet at a box junction they must duel. A duel is commenced by yelling ROTUNDUM! as loud as possible. They then must draw a ribbed dildo in the shortest possible time span. The winner is decided by the least amount of time it takes and the best quality drawn dildo. The loser must then insert a real dildo into Blaine's anus and beat off into his mouth, if he swallows, you are allowed to stay in the game. If he spits, you are eliminated.

Mike: ROTUNDUM!
Eric: Okay... 1,2,3... GO!
Joe: Man... Eric is the best at drawing dildos!
Blaine: Who cares about that! Just get to the part where you stuff it up my ass!
Chris: I heard Blaine can take 20 black cocks in the ass!
Morissette: OH YEAH! IT'S DA BEST!

Rotundum by The Big Easy April 26, 2005

Rotundus 

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!

Rotundus by PolarisKnight January 30, 2020

frumpalufagus rotundus 

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.

frumpalufagus rotundus by rampant1 December 14, 2008

Rotundularity 

A round yet muscular body type commonly found in Goron races across Hyrule and Termina

I could pull off a Darmani cosplay, Gorons have a kind of rotund muscularity to them, a rotundularity if you will ~random Twitch viewer

Rotundularity by Helix_Edge July 2, 2023