YOU SAID:

i ate my cat while i shat inside my uncles mouth

INTO JAPANESE

叔父の口の中でしゃべりながら猫を食べた

BACK INTO ENGLISH

I ate a cat while talking in my uncle's mouth

INTO JAPANESE

おじさんの口で話しながら猫を食べた

BACK INTO ENGLISH

I ate a cat while talking in my uncle's mouth