YOU SAID:

I pooped in a dogs mouth

INTO JAPANESE

犬の口でうんちをした

BACK INTO ENGLISH

I pooed at the dog's mouth.

INTO JAPANESE

私は犬の口元をうんざりした。

BACK INTO ENGLISH

I was disgusted with the dog's mouth.

INTO JAPANESE

私は犬の口にうんざりしました。

BACK INTO ENGLISH

I was disgusted with the dog's mouth.