budgie smugglers vs one-piece

budgie smugglers

noun
  • A style of tightfitting men's swimming costume cut like underwear briefs that covers the buttocks and groin but not the legs and reveals the bulge of the genitals; especially worn in surf lifesaving and in swimming races. 

one-piece

noun
  • A one-piece article of clothing, especially a swimsuit. 

adj
  • Composed of a single integral unit or so appearing. 

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