If you refer to something someone says as double-talk, you mean that it can deceive people or is difficult to understand because it has two possible meanings.
double talk in British English
noun
1.
rapid speech with a mixture of nonsense syllables and real words; gibberish
2.
empty, deceptive, or ambiguous talk, esp by politicians
double talk in American English
US
1.
ambiguous and deceptive talk
2.
deliberately confusing or unintelligible talk made up of a mixture of real words and meaningless syllables
Examples of 'double talk' in a sentence
double talk
In his eighties he could still improvise his signature double talk.