elbow bump vs knee

elbow bump

noun
  • A hit or jab made with the elbow. 

  • A hit to the elbow; also, an injury to the elbow caused by such a hit. 

  • The touching of elbows between two people, sometimes as an alternative to a handshake, fist bump, or other form of contact when attempting to avoid the spread of germs. 

knee

noun
  • A blow made with the knee; a kneeing. 

  • In the horse and allied animals, the carpal joint, corresponding to the wrist in humans. 

  • The part of a garment that covers the knee. 

  • Any knee-shaped item or sharp angle in a line; an inflection point. 

  • In humans, the joint or the region of the joint in the middle part of the leg between the thigh and the shank. 

  • A piece of timber or metal formed with an angle somewhat in the shape of the human knee when bent. 

  • An act of kneeling on one knee, typically to acknowledge an injury or sacrifice or otherwise to show respect. 

verb
  • To poke or strike with the knee. 

  • To move on the knees; to use the knees to move. 

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