(as) mad as a hatter

1. Crazy or deranged; particularly eccentric. My grandfather came back from the war as mad as a hatter because of all the horrible things he saw. I'll be mad as a hatter if I have to deal with these screaming toddlers for much longer. My family thinks I'm as mad as a hatter just because I practice a form of alternative medicine using magnetic fields.2. Particularly cross or angry. Mom was mad as a hatter after I dented her brand-new car. John gets as mad as a hatter when he starts losing.See also: hatter, mad

*mad as a hatter

and *mad as a march hare 1. crazy. (Alludes to the crazy characters in Lewis Carroll's Alice's Adventures in Wonderland. *Also: as ~.) Poor old John is as mad as a hatter. All these screaming children are driving me mad as a hatter. 2. angry. (This is a misunderstanding of mad in the first sense. *Also: as ~.) You make me so angry! I'm as mad as a hatter. John can't control his temper. He's always mad as a hatter.See also: hatter, mad

mad as a hatter

Also, mad as a March hare. Crazy, demented, as in She is throwing out all his clothes; she's mad as a hatter. This expression, dating from the early 1800s, alludes to exposure to the chemicals formerly used in making felt hats, which caused tremors and other nervous symptoms. The variant, dating from the 14th century, alludes to the crazy behavior of hares during rutting season, mistakenly thought to be only in March. See also: hatter, mad

mad as a hatter

mainly BRITISHIf someone is as mad as a hatter, they are crazy. Her sister's as mad as a hatter and if you ask me she's not much better herself. Note: In the 19th century, `hatters' or hat-makers used nitrate of mercury to treat their fabrics. This substance is poisonous, and if the hat-makers breathed it in, they often suffered brain damage. As a result, hatters were traditionally thought of as mad. In Lewis Carroll's children's story `Alice in Wonderland' (1865), one of the characters is a hatter who behaves very strangely. Carroll may have based the character on a well-known Oxford furniture dealer, Theophilus Carter, who was known as the `Mad Hatter'. See also: hatter, mad

mad as a hatter (or a March hare)

completely crazy. informal In this expression, a hatter refers to Lewis Carroll's character, the Mad Hatter, in Alice's Adventures in Wonderland ( 1865 ). It is thought that hatters suffered from the effects of mercury poisoning because of the fumes arising from the use of mercurous nitrate in the manufacture of felt hats. The March hare version refers to the way hares leap about during the breeding season.See also: hatter, mad

(as) mad as a ˈhatter

(informal) (of a person) crazyThe Mad Hatter was a character in Lewis Carroll’s Alice’s Adventures in Wonderland. Because of the chemicals used in hat-making, workers often suffered from mercury poisoning, which can cause loss of memory and damage to the nervous system.See also: hatter, mad

mad as a

hatter/March hare Crazy; mentally deranged.See also: mad

mad as a hatter

Crazy. Although many readers associate mad hatter with Alice’s tea party in Wonderland, attended by both a March Hare and a Hatter, the term is considerably older and is thought to come from the fact that the chemicals used in making felt hats could produce the symptoms of Saint Vitus’ dance or other nervous tremors. In literature, references occur in Thomas Haliburton’s The Clockmaker (1837) and Thackeray’s Pendennis (1850), both predating Lewis Carroll’s Alice’s Adventures in Wonderland (1865). The synonym mad as a March hare, incidentally, which dates from Chaucer’s time, is virtually obsolete.See also: hatter, mad

mad as a hatter

Crazy. The standard explanation comes from the effect to the brain caused by mercury nitrate used by 18th- and 19th-century hatmakers. Another view holds that “mad” originally meant “poisonous” and “hatter” is a corruption of the Saxon word “atter,” the adder snake, the bite of which affects the brain. In any event, the Mad Hatter character in Lewis Carroll's Alice in Wonderland is a testimony to eccentricity bordering on madness.See also: hatter, mad

单词	(as) mad as a hatter
释义	(as) mad as a hatter (as) mad as a hatter 1. Crazy or deranged; particularly eccentric. My grandfather came back from the war as mad as a hatter because of all the horrible things he saw. I'll be mad as a hatter if I have to deal with these screaming toddlers for much longer. My family thinks I'm as mad as a hatter just because I practice a form of alternative medicine using magnetic fields.2. Particularly cross or angry. Mom was mad as a hatter after I dented her brand-new car. John gets as mad as a hatter when he starts losing.See also: hatter, mad mad as a hatter and mad as a march hare 1. crazy. (Alludes to the crazy characters in Lewis Carroll's Alice's Adventures in Wonderland. Also: as ~.) Poor old John is as mad as a hatter. All these screaming children are driving me mad as a hatter. 2. angry. (This is a misunderstanding of mad in the first sense. Also: as ~.) You make me so angry! I'm as mad as a hatter. John can't control his temper. He's always mad as a hatter.See also: hatter, mad mad as a hatter Also, mad as a March hare. Crazy, demented, as in She is throwing out all his clothes; she's mad as a hatter. This expression, dating from the early 1800s, alludes to exposure to the chemicals formerly used in making felt hats, which caused tremors and other nervous symptoms. The variant, dating from the 14th century, alludes to the crazy behavior of hares during rutting season, mistakenly thought to be only in March. See also: hatter, mad mad as a hatter mainly BRITISHIf someone is as mad as a hatter, they are crazy. Her sister's as mad as a hatter and if you ask me she's not much better herself. Note: In the 19th century, `hatters' or hat-makers used nitrate of mercury to treat their fabrics. This substance is poisonous, and if the hat-makers breathed it in, they often suffered brain damage. As a result, hatters were traditionally thought of as mad. In Lewis Carroll's children's story `Alice in Wonderland' (1865), one of the characters is a hatter who behaves very strangely. Carroll may have based the character on a well-known Oxford furniture dealer, Theophilus Carter, who was known as the `Mad Hatter'. See also: hatter, mad mad as a hatter (or a March hare) completely crazy. informal In this expression, a hatter refers to Lewis Carroll's character, the Mad Hatter, in Alice's Adventures in Wonderland ( 1865 ). It is thought that hatters suffered from the effects of mercury poisoning because of the fumes arising from the use of mercurous nitrate in the manufacture of felt hats. The March hare version refers to the way hares leap about during the breeding season.See also: hatter, mad (as) mad as a ˈhatter (informal) (of a person) crazyThe Mad Hatter was a character in Lewis Carroll’s Alice’s Adventures in Wonderland. Because of the chemicals used in hat-making, workers often suffered from mercury poisoning, which can cause loss of memory and damage to the nervous system.See also: hatter, mad mad as a *hatter/March hare*** Crazy; mentally deranged.See also: mad mad as a hatter Crazy. Although many readers associate mad hatter with Alice’s tea party in Wonderland, attended by both a March Hare and a Hatter, the term is considerably older and is thought to come from the fact that the chemicals used in making felt hats could produce the symptoms of Saint Vitus’ dance or other nervous tremors. In literature, references occur in Thomas Haliburton’s The Clockmaker (1837) and Thackeray’s Pendennis (1850), both predating Lewis Carroll’s Alice’s Adventures in Wonderland (1865). The synonym mad as a March hare, incidentally, which dates from Chaucer’s time, is virtually obsolete.See also: hatter, mad mad as a hatter Crazy. The standard explanation comes from the effect to the brain caused by mercury nitrate used by 18th- and 19th-century hatmakers. Another view holds that “mad” originally meant “poisonous” and “hatter” is a corruption of the Saxon word “atter,” the adder snake, the bite of which affects the brain. In any event, the Mad Hatter character in Lewis Carroll's Alice in Wonderland is a testimony to eccentricity bordering on madness.See also: hatter, mad
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