
Lava Serpent.
The Big Bang Theory Season 3, Episode 5

Midgardsormen,
the world's SERPENT,
Vikings Season 1, Episode 6

They were well matched,
SERPENT and god,
Vikings Season 1, Episode 2

was fishing in the sea
for the SERPENT,
Vikings Season 1, Episode 2

I got a colossal SERPENT right here.
The Big Bang Theory Season 4, Episode 23