flump vs stand up

flump

verb
  • To move or fall heavily, or with a dull sound. 

  • To drop something heavily or with a dull sound. 

noun
  • A type of large marshmallow. 

  • A fat out-of-shape person. 

  • The dull sound so produced. 

stand up

verb
  • To bring something up and set it into a standing position. 

  • To rise from a lying or sitting position. 

  • To stand immediately behind the wicket so as to catch balls from a slow or spin bowler, and to attempt to stump the batsman. 

  • To launch, propel upwards 

  • (stand someone up) To avoid a prearranged meeting, especially a date, with (a person) without prior notification; to jilt or shirk. 

  • To last or endure over a period of time. 

  • To formally activate and commission (a unit, formation, etc.). 

  • to make one's voice heard, to speak up 

  • To continue to be believable, consistent, or plausible. 

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