boff vs tweak

boff

noun
  • A hit or smack. 

  • A great success; a hit. 

  • A pupil who works hard; a swot. 

  • A line in a film etc that elicits such a laugh. 

  • A big laugh. 

verb
  • to have sexual intercourse (with someone) 

  • To hit; to strike. 

tweak

noun
  • A sharp pinch or jerk; a twist or twitch. 

  • An additional input to a block cipher, used in conjunction with the key to select the permutation computed by the cipher. 

  • A slight adjustment or modification. 

  • Trouble; distress; tweag. 

verb
  • To pinch and pull with a sudden jerk and twist; to twitch. 

  • To exhibit extreme nervousness, evasiveness when confronted by authorities, compulsiveness, erratic motion, excitability, etc, due to or mimicking the symptoms of methamphetamine abuse. 

  • To adjust slightly; to fine-tune. 

  • To abuse methamphetamines, especially crystal meth. 

  • To tease, to annoy; to get under the skin of (someone, typically so as to irritate them, or by extension to enamor, frighten, etc). 

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