raring to go

raring to go idiom
Very eager to begin, as in The children were all dressed and raring to go. This idiom uses raring for rearing, and alludes to a horse's standing on its hind legs when it is anxious to get moving. [Early 1900s]

The American Heritage® Dictionary of Idioms by Christine Ammer. Copyright © 2003, 1997 by The Christine Ammer 1992 Trust. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

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