A person who was almost killed as a child due to the West Nile virus in India. This said person suffers symptoms such as, diarhhea, disfugured nostrils, heart palpitations, and other forms of mental retardation. Sounds serious, but if you ever met a biohorn, you would laugh. They look pretty effed up.
Guy 1: I just had sex with this hot indian bitch.
Guy 2: Dude, i hope you used a jimmy.
Guy 1: no, why?
Guy 2: F*ck man, you're gonna get biohorn!
Guy 1: Ah, I gotta crap. Hey, why are my nostrils all disfigured?
Guy 2: I told you man.
by Asep November 10, 2006
5 Words related to biohorn

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