Top Definition
Etymological history of the term brotus stems far back into the time of the Roman Empire. It is a modern day spin off based on the character description of Brutus, who was the famous assassin of Caesar. To be a brutus to someone is to stab them in the back and show no respect for them. Brotus is the antonym to the word brutus which, is a term that can be described as brotherhood. When someone is close friends with someone they are considered to be their brotus. The term brotus is the masculine version of term. The feminine version of the word is brotusette, and the plural masculine is brotusi.
John: "Is this guy you brought with legit?"
Sampson: "Oh yeah, he's my brotus, we go way back. He's good shit."
by Joseph Ihrke March 23, 2008

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Beer. Can be used both in the singular and plural.
While yer up, gimme a brotus outta the fridge!

Got a fridge full of cold brotus!
by g.smooth626 November 28, 2006

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When you make a status about your best friend (just that one best mother fucking friend to the end and beyond that) on FB and tag them and they do the same for you. Usually comes after you and said bro have a deep conversation about how good bros you are.
(insert name) Best Friend since kindergarten, through Wolftrap, through Kilmer when we both went to different schools, and now. Next year is going to be sick. Cant wait for your ass at Marshall
(Brotus)
by BrOMaStA March 21, 2011

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