Speedos vs budgie smugglers

Speedos

noun
  • A tight-fitting brief or bikini style swimsuit. 

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. 

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