This Japanese chant is used only during Season 4. It roughly translates to "Come out mask/face of evil". It's used to activate the removal spells of the Oni Masks, and it replaces Uncle's traditional Yu Mo Gui Gwai Fai Di Zao chant for the most part. It's last used in Ninja Twilight to turn Tarakudo back into his physical form so that he could be sealed inside his mask.
Its nearest kanji form is: 抜けるへ面邪悪