A fear of getting one's hair cut by a barber. This fear usually arises after watching Sweeney Todd:the demon barber of fleet street. Most of the people affected by this phobia are seen with either long hair or badly cut hair.
Sam is such a wierdo, he doesn't cut his hair. I think he's suffering from Toddphobia.
To weatherwax someone is to influence someone in a manner Granny Weatherwax would influence someone. Granny Weatherwax is a character on the Discworld created by Terry Pratchett. She is a witch, but on Discworld witches are the people who win the day and kick ass!
That guy just weatherwaxed me yesterday in the middle of the conversation.