sluggos vs two-piece

sluggos

noun
  • A type of men's swimming briefs where the bulge of the genitals is noticeable. 

two-piece

noun
  • A garment consisting of two separate parts; especially such a swimsuit 

adj
  • comprising two pieces 

How often have the words sluggos and two-piece occurred in a corpus of books? (source: Google Ngram Viewer )