bob vs slug

bob

noun
  • A blow; a shake or jog; a rap, as with the fist. 

  • A small wheel, made of leather, with rounded edges, used in polishing spoons, etc. 

  • A working beam in a steam engine. 

  • An unspecified amount of money. 

  • The docked tail of a horse. 

  • A graphical element, resembling a hardware sprite, that can be blitted around the screen in large numbers. 

  • A particular style of ringing changes on bells. 

  • A bobsleigh. 

  • Any of various hesperiid butterflies. 

  • A bobbing motion; a quick up and down movement. 

  • A curtsy. 

  • A bob haircut. 

  • Any round object attached loosely to a flexible line, a rod, a body part etc., so that it may swing when hanging from it. 

  • The dangling mass of a pendulum or plumb line. 

  • A short line ending a stanza of a poem. 

  • A bobber (buoyant fishing device). 

  • The short runner of a sled. 

verb
  • To bobsleigh. 

  • To strike with a quick, light blow; to tap. 

  • To curtsy. 

  • To move (something) as though it were bobbing in water. 

  • To move gently and vertically, in either a single motion or repeatedly up and down, at or near the surface of a body of water, or similar medium. 

  • To cut (hair) into a bob haircut. 

  • To shorten by cutting; to dock; to crop. 

slug

noun
  • A hard blow, usually with the fist. 

  • 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 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 bob and slug occurred in a corpus of books? (source: Google Ngram Viewer )