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March hare

British  

noun

  1. a hare during its breeding season in March, noted for its wild and excitable behaviour (esp in the phrase mad as a March hare )

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

I tell you, sir, he's as crazy as a March hare.

From Time Magazine Archive

In the Courier-Journal Colonel Watterson said flatly that Theodore was "as mad as a March hare," suggested that his family ought to lock him up before he did more harm.

From Time Magazine Archive

Farewell, Laura, I am your poor old mad March hare Mamma.

From Julia Ward Howe 1819-1910 by Elliott, Maud Howe

Dotty, my dear, as the veriest March hare.

From An Unknown Lover by Vaizey, George de Horne, Mrs.

Whoever has a touch of madness to lend him sympathy with the March hare likes the bewildering days through which he scampers to vanish at the edge of April.

From Minstrel Weather by Storm, Marian