side-eye vs tipping

side-eye

noun
  • A sidelong look, particularly of animosity, judgment, or suspicion. 

verb
  • To look at out of the corner of one's eye, particularly with animosity, or in a judgmental or suspicious manner. 

tipping

noun
  • The act by which something is tipped or inclined. 

  • A distinct articulation given in playing quick notes on the flute, by striking the tongue against the roof of the mouth; double-tonguing. 

  • The practice of leaving a tip (gratuity). 

  • A competition where entrants aim to tip (predict) the outcomes of sporting events. 

  • The dumping of rubbish. 

How often have the words side-eye and tipping occurred in a corpus of books? (source: Google Ngram Viewer )