spanner vs throttle

spanner

noun
  • A hand tool shaped like a small crank handle, for winding the spring of a wheel lock on a musket. 

  • One who, or that which, spans. 

  • A problem, dilemma or obstacle; something unexpected or troublesome (in the phrase spanner in the works) 

  • A hand tool for adjusting nuts and bolts; a wrench. 

  • A stupid or unintelligent person; one prone to making mistakes, especially in language. 

verb
  • To use a spanner; to fix with a spanner 

throttle

noun
  • The lever or pedal that controls this valve. 

  • A valve that regulates the supply of fuel-air mixture to an internal combustion engine and thus controls its speed; a similar valve that controls the air supply to an engine. 

verb
  • To utter with breaks and interruption, in the manner of a person half suffocated. 

  • To have the throat obstructed so as to be in danger of suffocation; to choke; to suffocate. 

  • To control or adjust the speed of (an engine). 

  • To breathe hard, as when nearly suffocated. 

  • To cut back on the speed of (an engine, person, organization, network connection, etc.). 

  • To strangle or choke someone. 

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