adj. A person who is exceptionally fanatical about their religious beliefs, sports team, or other thing which they support strongly - to the point of being scary. Origin - cross between fanatical and satanical.
Sue was dancing around scarily when her favorite sports team won and she looked quite fatanical.
Generally used when attempting to refer to the fact without directly stating it. Mostly used by people who don't feel secure in their use of the plant, and want to keep it on the down-low.
Tim's Father: Well, you know, I caught Tim smoking some marijuanathe other day. It's been ages since I did it.
Bill's Father: I gotta admit, I was quite the botanical hedonist back in the day...