Definition of advertisingese in US English:

advertisingese

noun

informal, depreciative
  • The type of language considered characteristic of advertisements, especially in using slogans, hyperbole, etc.

Origin

1920s; earliest use found in Printed Salesmanship. From advertising + -ese.

Pronunciation

advertisingese

/ˌadvətʌɪzɪŋˈiːz/