YOU SAID:
Watashi wa Baka gaijin desu
INTO JAPANESE
私はバカ外人です
BACK INTO ENGLISH
I am a stupid foreigner
INTO JAPANESE
私は愚かな外国人です
BACK INTO ENGLISH
I am a foolish alien
INTO JAPANESE
私は愚かなエイリアンです
BACK INTO ENGLISH
I am a foolish alien
That didn't even make that much sense in English.