gobbledegook

 
Pronunciation: /ˈgɒb(ə)ldɪˌguːk, -ˌgʊk/
(also gobbledygook)

noun

[mass noun] informal
  • language that is meaningless or is made unintelligible by excessive use of technical terms: reams of financial gobbledegook

Origin:

1940s (originally US): probably imitating a turkey's gobble