What is Potthead?
1.
An individual who is extremely infatuated with the Harry Potter series. Fans of the movies alone don't count. The difference between a mere fan and a Potthead is the difference between having read all of the books and having worn round glasses and a fake scar to not only the premiere of the movies, but the release date of the books.
A: Ohmygodohmygodohmygod I can't wait for the seventh book! I've already read Half-Blood Prince twelve times and -- *gasp* Do you think Jo's going to kill Harry just to be spiteful?? *cries*.
B: Jesus Christ, you're such a Potthead.
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2.
Potthead (with two t's) is a term for someone who is obsessed with anything related to Harry Potter
NOT someone who is smokes pot. That would just be a pothead.
Student 1: Have you seen that weird girl walking around school with her Harry Potter backpack and lunchbox?
Student 2: Yeah, that girl is a total potthead.
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3.
Weedsmoker. A man who love marijuana.
-Is this a weed, man?!?
-Yeah. Why?
-Oo you'r a potthead..!
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