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In Norse mythology, Surtr is a Fire Jotun and the king of the Fire Giants that inhabit the realm of Muspelheim. Though currently unable to leave Muspelheim, Surtr is prophesized to break free during Ragnarok and lead the Jotnar in an attack against the gods where he is destined to slay the god Freyr.

An angry person who is liable to snap and go on a killing spree any day now.

Another name for a Cale
Woah, my Surtr of a coach made me run laps all practice.
by Cosmic Behemoth October 13, 2010
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