jackrabbit

[ jak-rab-it ]
/ ˈdʒækˌræb ɪt /
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adjective

resembling a jack rabbit, as in suddenness or rapidity of movement: The car made a jackrabbit start when the traffic light turned green.

verb (used without object)

to go or start forward with a rapid, sudden movement.

Origin of jackrabbit

First recorded in 1925–30; see origin at jack rabbit
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for jackrabbit

Word Origin and History for jackrabbit

jackrabbit


n.

1863, American English, shortening of jackass-rabbit (1851), so called for its long ears. Proverbial for bursts of speed (up to 45 mph).

Online Etymology Dictionary, © 2010 Douglas Harper