YOU SAID:

My sister is drunk from drinking too much with my other sister and and other other sister and she said her head is going to explode into a gazillion pieces

INTO JAPANESE

私の妹は私の他の妹や他の妹と飲み過ぎて酔っていて、彼女は彼女の頭がガジリオンの部分に爆発すると言いました

BACK INTO ENGLISH

My sister was drunk drinking too much with my other sister and other sisters and she said her head exploded into the gazirion part

INTO JAPANESE

私の妹は私の他の姉妹や他の姉妹と飲みすぎて酔っていて、彼女は彼女の頭がガジリオンの部分に爆発したと言いました

BACK INTO ENGLISH

My sister was drunk drinking too much with my other sisters and other sisters and she said her head exploded into the gazirion part

INTO JAPANESE

私の妹は私の他の姉妹や他の姉妹と飲みすぎて酔っていて、彼女は彼女の頭がガジリオンの部分に爆発したと言いました

BACK INTO ENGLISH

My sister was drunk drinking too much with my other sisters and other sisters and she said her head exploded into the gazirion part