A brianiac is a person addicted to R&S yahoo answers. He is normally perverted and trolls in various sections. A Brianiac is comfortable with his sexuality and takes pleasure in watching others get pissed at him (contacts not included). He is not a very serious person, unless pulled into politics. A Brianiac makes many people laugh.
Person #1: OMG that person just asked a question about borrowing a 5 year old kid. What a pervert!