gobbledygook – language that is meaningless or made unintelligible by excessive use of technical terms

(Pronounced go-buhl-dee-gook)

To remember the meaning of gobbledygook, use the following mnemonic:

He made a mess as he gobbled a deep bowl of goulash, spilling it on his book (gobbledygook). After that the words were meaningless and unintelligible. 

Examples of gobbledygook in a sentence

His over use of a thesaurus had made the essay complete gobbledygook. 

Her lecture would be gobbledygook to anyone who wasn't an expert in the field.

As kids they had a made up gobbledygook language that only they understood.