Lava Serpent.
The Big Bang Theory Season 3, Episode 5
Well, I hope you saved room
for chocolate LAVA cake.
The Big Bang Theory Season 5, Episode 20
Really? The chocolate LAVA cake,
The Big Bang Theory Season 5, Episode 20
by the rapid cooling
of magnesium and iron-rich LAVA?
The Big Bang Theory Season 12, Episode 2
...how to make papier-mâché volcanoes
with baking-soda LAVA.
The Big Bang Theory Season 2, Episode 6