One who makes excessive use of smilies to express themselves in email, IM and to a lesser extent when spoken to in person. Can be compared to Gin Ichimaru from the animé Bleach or the Joker.
<Lawyer> I am sorry to tell you that your father has just passed away
<Lawyer> Please sign these documents
<Lawyer> He has left you £200,000 worth of assets in his will.