sure as shooting

sure as shooting idiom
Most certainly, as in It's going to snow tonight, sure as shooting, or That grizzly is sure as shooting going to make dinner out of us. This idiom has replaced the older sure as a gun, dating from the mid-1600s, a time when guns fired with far less certainty. [Second half of 1800s]

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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