YOU SAID:
you're such a dirty stinking rat
INTO JAPANESE
あなたはとても汚い臭いネズミです
BACK INTO ENGLISH
You are a very dirty smelling mouse
INTO JAPANESE
あなたは非常に汚いにおいのするマウスです
BACK INTO ENGLISH
You are a mouse that smells very dirty
INTO JAPANESE
あなたはとても汚いにおいがするマウスです
BACK INTO ENGLISH
You are a mouse that smells very dirty
That didn't even make that much sense in English.