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 )

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Example Sentences

In this adaptation, a doctor's white coat is hanging up and case files in brown binders labelled March Hare, Queen of Hearts, Mad Hatter, White Rabbit and Alice, are strewn across a desk.

From BBC

Back at our tables, the Mad Hatter and March Hare had exited stage left, and we were greeted by the Red Queen and a judge.

From Seattle Times

Among the ensemble are comedian Craig Ferguson as Doorknob; “Scrubs” alum Donald Faison as Harry the March Hare; and 13-year-old newcomer Libby Rue as Alice.

From Los Angeles Times

But her business has inspired a former employee to open a new toy store, the March Hare, across the street.

From New York Times

But this was among the qualities of his “Moby-Dick” that reviewers found bonkers: “The style is maniacal—mad as a March hare.”

From The New Yorker