boo boo vs indiscretion

boo boo

indiscretion

noun
  • The quality or state of being indiscreet; lack of discretion 

  • An indiscreet or imprudent act; indiscreet behavior. 

  • A brief sexual liaison. 

How often have the words boo boo and indiscretion occurred in a corpus of books? (source: Google Ngram Viewer )