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echo boomer

noun Informal.
  1. a member of Generation Y, born in the 1980s or 1990s; a Millennial.

Origin of echo boomer

so called because many are children (‘echos’) of baby boomers, and the birthrate also increased in the 1980s and 1990s
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018