beginner's luck

beginner's luck idiom
Good fortune in a first attempt or effort, as in I often use a brand-new recipe for a dinner party; I trust beginner's luck. [Late 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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