His way ran through stench and fire, close to the mouth of the bottomless pit.
Eldon Hole near Peak Forest used to be feared as the entrance to a bottomless pit or even to Hell itself.
You do not have to worry about the tangling of your necklaces or losing an earring or stud amongst a bottomless pit.
Just ask anyone who's ever dug through a bottomless pit of ancient receipts, gum wrappers and coins!
Her self-esteem was slowly sinking into a bottomless pit.