Noun used to describe a diseased individual who is compelled to mention, quote, or listen to the music of Tupac Shakur. Often someone suffering from this malady will help spread or become a source for the many urban legends surrounding the dead rapper.
Tupacaholic- "You know, it be just like Tupac said- To be or not to be..."
Smart kid- "Actually wasn't that Shakespeare?"
Tupacaholic- "Why you always gotta be cuttin down the genius son?"