slap vs slipper

slap

verb
  • To impose a penalty, etc. on (someone). 

  • To play slap bass on (an instrument). 

  • To be excellent. 

  • To cause something to strike soundly. 

  • To strike soundly against something. 

  • To place, to put carelessly. 

  • To give a slap to. 

noun
  • The percussive sound produced in slap bass playing. 

  • An eye-catching sticker used in street art. 

  • Makeup; cosmetics. 

  • A blow, especially one given with the open hand, or with something broad and flat. 

  • A sharp percussive sound like that produced by such a blow. 

adv
  • Exactly, precisely 

slipper

verb
  • To spank with a plimsoll as corporal punishment. 

noun
  • A low soft shoe that can be slipped on and off easily. 

  • The plimsoll or gym shoe used in this form of punishment. 

  • A kind of bedpan urinal shaped like a shoe. 

  • A kind of brake or shoe for a wagon wheel. 

  • A person who slips. 

  • A piece, usually a plate, applied to a sliding piece, to receive wear and permit adjustment; a gib. 

  • A kind of apron or pinafore for children. 

  • A form of corporal punishment where the buttocks are repeatedly struck with a plimsoll; "the slipper". 

  • Such a shoe intended for indoor use; a bedroom or house slipper. 

  • A flip-flop (type of rubber sandal). 

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