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® Idioms Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
How to use snap to in a sentence
Looks as if you were going to have a snap to-night, Joe, said Mills.Boy Scouts in Glacier Park | Walter Prichard Eaton