It was worth the wait — BIG FREEDIA, New Orleans’s sissy-bounce queen (she identifies as female, y’all), rocking those butts at Brighton Music Hall in a Boston debut on Memorial Day. Freedia (pronounced Freda), doesn’t rap exactly — she exhorts, she coaches, she commands. Her hooks are rapid-fire repetitions of her titles: “AZZeverywhere! AZZeverywhere! AZZeverywhere!” And a lot of incantation that sounds like “wackawackwackawacka,” or — more to the point “wobblewobblewobblewobblewobble.