rump vs tailpiece

rump

noun
  • The buttocks. 

  • A cut of meat from the rump of an animal. 

  • The hindquarters of a four-legged mammal, not including its legs 

  • A remnant, as in Rump Parliament. 

verb
  • To turn one's back on, to show one's (clothed) backside to, as a sign of disrespect. 

  • To fuck. (Compare bum (verb).) 

  • To cheat. 

  • To ramble; to move (or talk) aimlessly. 

  • To move (someone or something) around. 

tailpiece

noun
  • An appendage or appendix. 

  • An element, often triangular, to which the strings of a violin, guitar, etc. are attached at the lower end of an instrument. 

  • A short joist between a header and a wall. 

  • The part of a telescope containing the adjusting device for the eyepiece, etc. 

  • The part of a lock that transmits motion from the hub to the latch bolt. 

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