"Haka" is a Maori (from New Zealand) war dance. The words are chanted loudly in a menacing way accompanied by arm actions and foot stamping. A haka was traditionally performed before charging into battle but are not exclusively war dances, it can be performed for amusement, as a hearty welcome to distinguished guests, or to acknowledge great achievements or occasions.
The New Zealand Rugby Team (the "All Blacks") will do the "Haka" prior to their games.

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