schoolboy vs schoolgirl

schoolboy

noun
  • A boy attending school. 

adj
  • characteristic of a schoolboy, especially being cheeky, clumsy and socially unaware. 

schoolgirl

noun
  • A girl attending school. 

verb
  • To restrain in a schoolgirl pin. 

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