What is Kamakura Kamakura yas queen?

The thing Junko Enoshima from Danganronpa said while being brainwashed

Junko Enoshima: KAMAKURA KAMAKURA YAS QUEEN Makoto Naegi: WTF Junko Enoshima: KAMAKURA KAMAKURA YAS QUEEN

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Kamakura Kamakura yas queen - video