• @PugJesusOPM
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      English
      77 hours ago

      Not sure. Ventilation?

      • @MiltownClowns
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        56 hours ago

        I would guess an inlet for a small fire, like an igloo.

    • sickday
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      fedilink
      67 hours ago

      Just a guess, but if someone steps over it, the light from that small hole is covered, so the occupants of the hole know to squeeze into the corner so they wont be seen if someone peers down into the hole.