jitterbug vs tightass

jitterbug

noun
  • A nervous or jittery person. 

  • An uptempo jazz or swing dance which embellishes on the two-step pattern and frequently incorporates acrobatic style swing steps. 

  • A jazz musician or aficionado. 

  • Synonym of diddley bow (“type of stringed instrument”) 

verb
  • To dance the jitterbug. 

tightass

noun
  • Someone who does not know how to have fun, or who is so worried about insignificant things as to ruin any fun that anyone around them may be having. 

  • Someone who is stingy, or who is tight with money. 

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