Dark chocolate cake or Pompeii spew

noun

1. Molten rock that issues from a volcano or from a fissure in the surface of a planet (such as earth) or moon

noun

1. A decorative lamp constructed of a transparent glass container filled with liquid and wax that is heated by an incandescent bulb which melts the wax and causes it to form random moving shapes within the liquid

   "Lava lamps are back—and not just among retro hipsters lounging on shag rugs and waterbeds."

geographical name

1. Area of volcanic features in northern California southeast of Lower Klamath Lake