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Etymology edit

sphere +‎ -ing

Noun edit

sphereing (uncountable)

  1. The practice of humans traveling in a sphere, generally made of transparent plastic, usually for fun.
    • 2008 August 4, “Sphere we go again”, in Body Confidential:
      Well with sphereing, you are that sock - a prisoner inside a huge inflatable spherical jail, travelling down hills at speeds of up to 30mph

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