groundlubber

Blend of ground +‎ landlubber.

groundlubber (plural groundlubbers)

1. (science fiction, derogatory) Someone who does not regularly travel to space.

   Synonym: groundhog

   • 2007, China Miéville, Un Lun Dun, London: Macmillan Children's Books, →ISBN, page 86:

     So might I ask just what exactly groundlubbers like you are doing in the Roofdom?

• Jesse Sheidlower, editor (2001–2025), “groundlubber, n.”, in Historical Dictionary of Science Fiction.