rip vs slack

rip

verb
  • To fart. 

  • To mock or criticize (someone or something). (often used with on and into) 

  • To steal; to rip off. 

  • To divide or separate the parts of (especially something flimsy, such as paper or fabric), by cutting or tearing; to tear off or out by violence. 

  • To tear apart; to rapidly become two parts. 

  • To surf extremely well. 

  • To get by, or as if by, cutting or tearing. 

  • To take a "hit" of marijuana. 

  • To copy data from a CD, DVD, Internet stream, etc., to a hard drive, portable device, etc. 

  • To move or act fast; to rush headlong. 

  • To move quickly and destructively. 

  • To cut wood along (parallel to) the grain. 

noun
  • A kind of glissando leading up to the main note to be played. 

  • A type of strong, rough tide or current. 

  • Data or audio copied from a CD, DVD, Internet stream, etc. to a hard drive, portable device, etc. 

  • A handful of unthreshed grain. 

  • A comical, embarrassing, or hypocritical event or action. 

  • A tear (in paper, etc.). 

  • A black mark given for substandard schoolwork. 

  • A hit (dose) of marijuana. 

  • Something ripped off or stolen; a work resulting from plagiarism. 

  • A wicker basket for fish. 

  • A rip current: a strong outflow of surface water, away from the shore, that returns water from incoming waves. 

  • Something unfairly expensive, a rip-off. 

  • A joyride. 

slack

verb
  • To slacken. 

  • To lose cohesion or solidity by a chemical combination with water; to slake. 

adv
  • Slackly. 

noun
  • Unconditional listening attention given by client to patient. 

  • A temporary speed restriction where track maintenance or engineering work is being carried out at a particular place. 

  • A tidal marsh or shallow that periodically fills and drains. 

  • The part of anything that hangs loose, having no strain upon it. 

  • Small coal; coal dust. 

  • A valley, or small, shallow dell. 

adj
  • Moderately warm. 

  • Vulgar; sexually explicit, especially in dancehall music. 

  • Not active or busy, successful, or violent. 

  • Excess; surplus to requirements. 

  • Lax; not tense; not firmly extended. 

  • Lacking diligence or care; not earnest or eager. 

  • Lax. 

  • Moderate in speed. 

  • Weak; not holding fast. 

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