circus ring vs tattoo

circus ring

noun
  • A circular arena in a circus, where the acts are performed. 

tattoo

noun
  • A military display or pageant. 

  • A signal by drum or bugle ordering soldiers to return to their quarters. 

  • A pony of a certain breed from India. 

  • An image made in the skin with ink and a needle. 

  • A method of decorating the skin by inserting colored substances under the surface with a sharp instrument (usually a solenoid-driven needle). 

  • A signal played five minutes before taps (lights out). 

verb
  • To hit the ball hard, as if to figuratively leave a tattoo on the ball. 

  • To tap rhythmically on, to drum. 

  • To apply a tattoo to (someone or something). 

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