left-winger vs southpaw

left-winger

noun
  • A person who plays the position of left wing. 

  • A person who espouses left-wing political views. 

  • A member of the left wing of a party or group. 

southpaw

noun
  • One who is left-handed, especially in sports. 

  • A boxer who leads with the right hand and guards with the left 

  • A left-handed pitcher. 

How often have the words left-winger and southpaw occurred in a corpus of books? (source: Google Ngram Viewer )