potter mouth - someone who constantly talks about the harry potter series when you just want them to stop.
frank: so guys i want your thoughts on the new harry potter movie - do you think harry's son is going to be slitherin or Griffondor? ooh ooh and what about snape? no one saw that coming am i right!

dan: stfu.
carl: stfu.
jake: stfu.
brian: yea dude your such a potter mouth.
by anothernamewithbroinit July 21, 2011
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