socko vs thundering

socko

adj
  • Superb, excellent, stunning. 

thundering

adj
  • Very great; extraordinary. 

  • Of, pertaining to, or accompanied by thunder. 

  • Producing a noise or effect like thunder; thunderous. 

noun
  • A loud percussive sound, like thunder. 

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