slicker vs swallowtail

slicker

noun
  • A waterproof coat or jacket. 

  • A symmetrical knife with a handle at each end, used for burnishing leather. 

  • A brush for grooming a cat and removing loose fur. 

  • A swindler or conman. 

  • A curved tool for smoothing the surfaces of a mould after the withdrawal of the pattern. 

  • A two-handled tool for finishing concrete or mortar; a darby. 

  • A person who is perceived as clever, urbane and possibly disreputable. (abbreviation of city slicker.) 

  • One who or that which slicks. 

verb
  • To slither, as on a slick surface. 

  • To con or hoodwink. 

  • To use a slicker on. 

  • To smooth or slick. 

  • To spread mashed manure on fields as a form of fertilization. 

swallowtail

noun
  • A type of tailcoat with two long tapering tails.ᵂᵖ 

  • The forked tail of a swallow. 

  • Anything, such as a burgee, of a similar forked shape. 

  • Any of various butterflies of the family Papilionidae, many of which have a long extension to each hindwing. 

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