mishap vs rear-ender

mishap

noun
  • An accident, mistake, or problem. 

  • Evil accident; ill luck; misfortune; mischance. 

rear-ender

noun
  • A minor automobile accident in which contact is made between the front of one vehicle and the rear of another. 

How often have the words mishap and rear-ender occurred in a corpus of books? (source: Google Ngram Viewer )