Top Definition
Originally a marijuana plant on the desk of a MAD Magazine writer, but is now an avocado plant. Arthur appears in the backdrop of comic strips in MAD magazine to this day, and has grown more and more leaves over the years.
Have you seen how big and legal Arthur the Potted Plant has gotten over the years? ECCH!
by Drewsus Christ January 24, 2009
6 Words related to Arthur the Potted Plant

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