bottom vs rump

bottom

noun
  • The buttocks or anus. 

  • Low-lying land near a river with alluvial soil. 

  • The far end of somewhere. 

  • A ball or skein of thread; a cocoon. 

  • A submissive in sadomasochistic sexual activity. 

  • Low-lying land; a valley or hollow. 

  • The second half of an inning, the home team's turn at bat. 

  • A cargo vessel, a ship. 

  • A man who prefers the receptive role in anal sex with men. 

  • Character, reliability, staying power, dignity, integrity or sound judgment. 

  • Certain parts of a vessel, particularly the cargo hold or the portion of the ship that is always underwater. 

  • The base; the fundamental part; basic aspect. 

  • A garment worn to cover the body below the torso. 

  • An abyss. 

  • The lowest part of anything. 

  • Spirits poured into a glass before adding soda water. 

  • The lowest part of a container. 

  • The bed of a body of water, as of a river, lake, or sea. 

adj
  • Relating to the genitals. 

  • The lowest or last place or position. 

verb
  • To pour spirits into (a glass to be topped up with soda water). 

  • To establish or found (something) on or upon. 

  • To lie on the bottom of; to underlie, to lie beneath. 

  • To reach the bottom of something. 

  • To fall to the lowest point. 

  • To be the submissive partner in a BDSM relationship. 

  • To reach or strike against the bottom of something, so as to impede free action. 

  • To furnish (something) with a bottom. 

  • To be anally penetrated in gay sex. 

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. 

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