tied up in knots vs uptight

tied up in knots

uptight

noun

  • An uptight person. 

adj

  • Excessively concerned with rules and order, always serious. 

  • Emotionally repressed; nervous and tense. 

  • Sexually repressed. 

  • Unfriendly and rude. 

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