No self respecting wizard should be seen without this shirt. It can make going through life rather difficult though, with the constant challenges to one's wits.
"Nobody can tell wizards what to do – except of course other wizards! And even then they will argue and find fault, hurrah!" - Terry Pratchett, Judgement Day
There's a scene in the 1997 movie 'Good Will Hunting' (starring Matt Damon, Ben Affleck and Robin Williams) where one of the characters declares "My boy's wicked smart!" with that Bostonian accent that still lingers in the ear. That is what inspired this design - a Fantasy RPG version. Say it with the same accent: "Wizahd Smaht!"