Definition of "Boomer"

Boomer

proper noun
plural Boomers
1. A surname.
noun
plural Boomers
1. (US, historical) A member of a 19th century movement which campaigned for the opening of "Unassigned Lands" within the Indian Territory (now Oklahoma) for settlement.
  Quotations
  Some skunk of a Sooner, sneaking in ahead of the Run, had set the blaze to keep the Boomers off, saving the land for himself.
  1930, Edna Ferber, Cimarron, page 27
2. Rare form of boomer (“baby boomer”).
  Quotations
  In a somewhat bizarre set of survey data from 2015, 33 percent of Millennials identified as Gen X, and 8 percent said that they were Boomers. Fifteen percent of Gen Xers said that they identified as Boomers, while a baffled 2 percent of Boomers and 4 percent of Silents thought of themselves as Millennials.
  2021 October 14, Joe Pinsker, “’Gen Z’ Only Exists in Your Head”, in The Atlantic‎, Washington, D.C.: The Atlantic Monthly Group, archived from the original on 2023-09-13