spiffing vs wicked

spiffing

adj
  • Very good, excellent. 

  • Smart or appealing in dress or appearance. 

wicked

adj
  • Excellent; awesome; masterful. 

  • Having a wick. 

  • Infested with maggots. 

  • Evil or mischievous by nature. 

adv
  • Very, extremely. 

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