shì​bù​guò​sān

limited misfortune

事不过三 (事不過三) shì​bù​guò​sān
limited misfortune
the belief that a bad event will not occur more than three times in a row
repetition limit
the principle that an action or mistake should not be repeated more than three times

Frequency

Movie subtitles
0.330 per million appears in 0% of films
Written text
0.371 per million

Sources

Definitions
CC-CEDICT