salad dodger vs thunder thighs

salad dodger

noun

  • An overweight person. 

  • One who does not normally eat salad. 

thunder thighs

noun

  • A person, usually a woman, with fat thighs. 

  • Fat thighs. 

How often have the words salad dodger and thunder thighs occurred in a corpus of books? (source: Google Ngram Viewer )