Mad As a Hatter

If someone says you are mad as a hatter, they are accusing you of being quite irrational. The sense of madness here is "suffering from a disorder of the mind; insane." This phrase usually refers not to someone who is actually insane, but rather to a more normal person who is behaving in an irrational way.
The phrase emerged in England in the 19th century. Hatmakers in those days used a lot of felt that was treated with chemicals including lead, arsenic, and mercury.
Unfortunately, those chemicals are highly toxic. The symptoms of such poisoning include palsy, confused speech, and distorted thinking. Today, making hats is a much safer profession, but the phrase survives.
An interesting alternate explanation of the phrase derives hatter from Anglo-Saxon atter (poison), which is related to adder (a poisonous snake whose bite was thought to cause insanity).

You are MAD AS A HATTER!

by Its me, its me, the M-E-T-Z! December 8, 2003

The Hatter

While receiving a blow job and the moment of climax you grab your partners finger and shove it in your ass!

Dick received the Hatter last night and loved it!

by The Hatter May 1, 2016

badder hatter

The better hat, the most bad ass looking hat worn in the room. The baddest hat.

That's a swell hat Matt's wearing but Devin's is by far the badder hatter.

by Youmadbrubadtothebougie October 26, 2020

Tin Hatter

A totally consumed Conspiracist that is CONSTANTLY trying to convince you that conspiracies are true.

I cant believe all the wild and crazy stories you keep telling me man, I don't want to hear it - your a Tin Hatter.

by Busters March 18, 2010

brown hatter

Pejorative. A male homosexual, so-called due to the propensity of the tip of the male member to become coated with feces during the act of anal intercourse.

Boy George is the king of the brown hatters.

by Tunmy AuGratin April 10, 2006

pink hatter

One of the new-found "fans" of the Boston Red Sux who has limited to no knowledge of the game of baseball, and who buys expensive and scarce tickets to the ball game because of the frat-party like atmosphere, and so he or she can brag of their allegiance around the water cooler. The pink hatter is so named because their team apparrel purchases are unconventional in color, and are merely chosen in an attemp to call attention to themselves and their amplified hipster factor. Pink hatters can be found in the ballpark taking the seat of a more interested and less casual fan that was unable to get a ticket.

Did you see the movie Fever Pitch where Drew Barrymore gets hit in the head by a baseball at a game because she is using her lap-top computer? That scene was meant to be humorous, but it made light of the serious problem of the confluence of pink hatters to Fenway Park. Geez, bandwagon fannery has certainly gotten out of control.

by Hipster Hater March 29, 2008

brown hatter's overalls

Pajamas, as worn by many men up until the late 70's, when central heating in the UK was commonly installed in many homes.

Bob was wearing his brown hatter's overalls when I called 'round this morning

by ward b July 6, 2007