Green’s Dictionary of Slang

Black Power dance n.

also power dance
[SE Black Power, a political movement created c.1966 by Stokely Carmichael (1941–98) and H. Rap Brown (b. 1943). The spirit of Black Power lay behind the 1960s riots, when militant US blacks looted in the big city ghettos]
(US black)

1. looting.

[US] (ref. to 1960s) C. Major Juba to Jive 362: Power Dance; Black Power Dance n. (1960s) the mood of reacting physically to oppression; looting.

2. fighting back against white oppression.

see sense 1.