gibberish vs wack

gibberish

adj
  • unintelligible, incoherent or meaningless 

noun
  • Needlessly obscure or overly technical language. 

  • Speech or writing that is unintelligible, incoherent or meaningless. 

  • A language game, comparable to pig Latin, in which one inserts a nonsense syllable before the first vowel in each syllable of a word. 

wack

adj
  • Annoyingly or disappointingly bad, in various senses; lousy, cringy, uncool, messed up. 

noun
  • A friendly term of address. 

  • An eccentric; an oddball; a weirdo. 

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