baby of the family vs brat

baby of the family

noun
  • A member of an immediate family who behaves as, or is treated as though they were the youngest member of a family. 

  • The youngest member of an immediate family. 

  • An adult member of an immediate family who is treated by others in the family, especially the parents, as though they were a child. 

brat

noun
  • A child who is regarded as mischievous, unruly, spoiled, or selfish. 

  • A child (at any age) of an active military service member. 

  • A human child. 

  • A thin bed of coal mixed with pyrites or carbonate of lime. 

  • A turbot or flatfish. 

  • A rough cloak or ragged garment. 

  • Bratwurst. 

verb
  • To act in a bratty manner (as the submissive). 

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