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1.
A man/being of great might and power. One only need declare "A FIRE GIANT" to be true.

Origination from a mic spam used in Valve games such as Team Fortress 2, with a great man voice declaring "A FIRE GIANT", with no known origin of this clip.
Ed: Aw man we're gonna loose!
*Bill B saves the day*
Bill B: A FIRE GIANT
by beelzebro June 17, 2010