snap to

snap to idiom
Move swiftly and smartly to an action, as in The troops snapped to attention. This phrase is sometimes expanded to snap to it, as in You'd better snap to it if we're going to finish today. [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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