YOU SAID:

i ate my cat while i pooped inside my uncles mouth

INTO JAPANESE

叔父の口の中をうんちしながら猫を食べた

BACK INTO ENGLISH

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

INTO JAPANESE

おじさんの口でうんちしながら猫を食べた

BACK INTO ENGLISH

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