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hightail

[hahy-teyl]
verb (used without object) Informal.
  1. to go away or leave rapidly: Last we saw of him, he was hightailing down the street.
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Idioms
  1. hightail it, hurry; rush; scamper: Hightail it down to the grocery store and buy some bread for lunch.
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Origin of hightail

1885–90, Americanism; high + tail1, in reference to the raised tails of fleeing animals, as deer or rabbits
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

British Dictionary definitions for high-tail it

hightail

verb
  1. (intr) informal, mainly US and Canadian to go or move in a great hurryAlso: hightail it
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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