The use of gimmicks as a whole; tricks, gadgets, or clever devices used to attract attention rather than provide real substance.
Gimmick (origin debated, possibly from 'jim-jam' or Yiddish) + -ery suffix forming abstract nouns. Common in 20th-century marketing and advertising language.
Gimmickery is the industrial-scale version of a single gimmick—it's when marketing becomes more about flashy tricks than actual product value, and everyone knows it!
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