backslide vs cartwheel

backslide

noun
  • A dance move in which the feet are alternately slid back and the heels lifted, giving the illusion of walking forwards while actually moving backwards. 

  • A backward regression; a reverting back to a worse state. 

verb
  • To revert back into a life of sin after being saved. 

  • To regress; to slip backwards or revert to a previous, worse state. 

  • To shirk responsibility; to renege on one's obligations or commitments. 

cartwheel

noun
  • A gymnastic maneuver whereby the gymnast rotates to one side or the other while keeping arms and legs outstretched, spinning for one or more revolutions. 

  • The literal wheel of a cart. 

verb
  • To perform the gymnastics feat of a cartwheel. 

  • To flip end over end: normally said of a crashing vehicle or aircraft. 

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