chopped liver vs tip drill

chopped liver

noun
  • A person or object not worthy of being noticed; someone or something insignificant. 

  • A Jewish pâté-like food made by mincing beef or chicken liver and onions which have been broiled or fried in schmaltz (“chicken fat”) together with hard-boiled eggs; it is usually spread on to bread. 

tip drill

noun
  • Synonym of butterface: A person with an attractive body but an ugly face. 

  • A practice drill where a line of players improve their rebounding skills by catching a rebound in the air, tossing the ball back against the backboard before landing, and returning to the end of the line to go again. 

  • A person who is gangbanged. 

How often have the words chopped liver and tip drill occurred in a corpus of books? (source: Google Ngram Viewer )