YOU SAID:
Why you gotta be so stupid
INTO JAPANESE
なぜあなたはそんなに愚かなの?
BACK INTO ENGLISH
Why are you so stupid?
INTO JAPANESE
バカな奴だ
BACK INTO ENGLISH
Twerp.
INTO JAPANESE
バカな奴だ
BACK INTO ENGLISH
Twerp.
That didn't even make that much sense in English.