wake up one day

English

Verb

wake up one day (third-person singular simple present wakes up one day, present participle waking up one day, simple past woke up one day, past participle woken up one day)

1. To undergo an overnight change, often an unplanned one (used with and)

   The feud between the Hatfields and the McCoys must have been fueled by some event, as no reasonable person would wake up one day and decide they hated everyone in the other family.