english
1
general::
Phrase(s): beginner’s luck absolute luck; the luck of an inexperienced person. (Referring to surprisingly good luck.) • I could never have accomplished this if I had practiced a lot. My win was just beginner’s luck.
McGrawhill's American Idioms And Phrasal Verbs
2
general::
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]
American Heritage Idioms