war dance

from The American Heritage® Dictionary of the English Language, 5th Edition.

• noun A dance performed before a battle or as a celebration after a victory, as in traditional Native American societies.

from The Century Dictionary.

• noun A dance engaged in by savage tribes before a warlike excursion.
• noun A dance simulating a battle.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun A ceremonial dance performed before a major battle or after a victory, usually by a tribe.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• noun a ceremonial dance performed before a battle or after a victory