biscuit vs slug

biscuit

noun
  • A handgun, especially a revolver. 

  • A small, flat, baked good which is either hard and crisp or else soft but firm; a cookie. 

  • The head. 

  • A puck (hockey puck). 

  • A form of unglazed earthenware. 

  • A thin oval wafer of wood or other material inserted into mating slots on pieces of material to be joined to provide gluing surface and strength in shear. 

  • A cracker. 

  • A plastic card bearing the codes for authorizing a nuclear attack. 

  • A small, usually soft and flaky bread, generally made with baking soda, which is similar in texture to a scone but which is usually not sweet. 

  • A light brown colour. 

  • The "bread" formerly supplied to naval ships, which was made with very little water, kneaded into flat cakes, and slowly baked, and which often became infested with weevils. 

slug

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

  • 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. 

  • 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. 

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. 

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