Hatter v. t. : To tire or worry; -- out.

Hatter n. : One who makes or sells hats.

Example:
How are the Mad Hatter and March Hare different in personality?

Taxonomy
Hatter, free encyclopedia, The Mad hatter, The Hatters, hats, Hatter Fox, Mad as a Hatter, novel, mascot, Batman episode, Mad Hatter, search, seller, character, 1865, English author, author Charles, Charles Lutwidge Dodgson.

Defination from the web:
hatter is a character in Alice's Adventures in Wonderland, a novel written in 1865 by English author Charles Lutwidge Dodgson under the pseudonym Lewis Carroll. ... Connecticut's Danbury High School's mascot is the Hatter because Danbury was the hat center of the world from ...