YOU SAID:
You are such a goofy guy.
INTO JAPANESE
あなたはそのような間抜けな人です。
BACK INTO ENGLISH
You are such a stupid person.
INTO JAPANESE
あなたはそんな愚かな人です。
BACK INTO ENGLISH
You are such a foolish person.
INTO JAPANESE
あなたはそんな愚かな人です。
BACK INTO ENGLISH
You are such a foolish person.
That didn't even make that much sense in English.