rap vs slug

rap

verb
  • To strike something sharply with one's knuckles; knock. 

  • To free (a pattern) in a mould by light blows on the pattern, so as to facilitate its removal. 

  • To speak (lyrics) in the style of rap music. 

  • To seize and carry off. 

  • To transport out of oneself; to affect with rapture. 

  • To talk casually; to engage in conversation. 

  • To utter quickly and sharply. 

noun
  • A whit; a jot. 

  • A positive appraisal; a recommendation. 

  • An appraisal. 

  • Any of the tokens that passed current for a halfpenny in Ireland in the early part of the eighteenth century; any coin of trifling value. 

  • A charge, whether or not it results in a conviction. 

  • A lea or skein of yarn that forms the standard length taken from the reel, 80 yards of worsted or 120 yards of silk or cotton. 

  • Rap music. 

  • A sharp blow with something hard. 

  • A casual talk. 

  • Blame for something. 

  • A song, verse, or instance of singing in the style of rap music. 

slug

verb
  • To hit very hard, usually with the fist. 

  • To drink quickly; to gulp; to down. 

  • To take part in casual carpooling; to form ad hoc, informal carpools for commuting, essentially a variation of ride-share commuting and hitchhiking. 

  • To make sluggish. 

  • To become reduced in diameter, or changed in shape, by passing from a larger to a smaller part of the bore of the barrel. 

  • To load with a slug or slugs. 

noun
  • A title, name or header, a catchline, a short phrase or title to indicate the content of a newspaper or magazine story for editing use. 

  • A bullet or other projectile fired from a firearm; in modern usage, generally refers to a shotgun slug. 

  • The last part of a clean URL, the displayed resource name, similar to a filename. 

  • A hard blow, usually with the fist. 

  • A black screen. 

  • A motile pseudoplasmodium formed by amoebae working together. 

  • A piece of type metal imprinted by a linotype machine; also a black mark placed in the margin to indicate an error; also said in application to typewriters; type slug. 

  • A ship that sails slowly. 

  • The imperial (English) unit of mass that accelerates by 1 foot per second squared (1 ft/s²) when a force of one pound-force (lbf) is exerted on it. 

  • A solid block or piece of roughly shaped metal. 

  • Any of many terrestrial pulmonate gastropod mollusks, having no (or only a rudimentary) shell. 

  • An accessory to a diesel-electric locomotive, used to increase adhesive weight and allow full power to be applied at a lower speed. It has trucks with traction motors, but lacks a prime mover, being powered by electricity from the mother locomotive, and may or may not have a control cab. 

  • A stranger picked up as a passenger to enable legal use of high occupancy vehicle lanes. 

  • A hitchhiking commuter. 

  • A counterfeit coin, especially one used to steal from vending machines. 

  • A discrete mass of a material that moves as a unit, usually through another material. 

  • A shot of a drink, usually alcoholic. 

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