Definition of "zoomer"

zoomer¹

noun
plural zoomers
1. That which zooms.
  Quotations
  The car zoomed – the driver was definitely a zoomer – away to some unknown car pool […]
  2011, Gavin Lyall, Uncle Target
2. A kind of small swim fin.
3. (neologism) A baby boomer with a very active lifestyle.
  Quotations
  A recent study released by the Conference Board of Canada states that the Zoomers (Baby Boomers who refuse to age), Gen X and Gen Y have more in common than we might think.
  2010, Cheryl Cran, 101 Ways to Make Generations X, Y and Zoomers Happy at Work, page 15

zoomer²

noun
plural zoomers
1. A member of Generation Z.
  Quotations
  Hug a Boomer/Xer/Millennial/Zoomer In case you missed it: Gen Z is mad at boomers for the state of the world; boomers are mad at Gen Z for being so dismissive; Gen X feels forgotten and yet resents even themselves; […]
  2019 December 27, Anya Strzemien, “13 Ways to Be a Better Person in 2020”, in New York Times‎