hole in one

hole in one idiom
A perfect achievement, as in Tim scored a hole in one on that test. The term alludes to a perfect stroke in golf, where one drives the ball from the tee into the hole with a single stroke. [c. 1900]

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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