YOU SAID:
yo my brother was poppin
INTO JAPANESE
よ、私の弟はポッピンだった
BACK INTO ENGLISH
Yo, my brother was a poppin
INTO JAPANESE
よ、私の兄はポッピンだった
BACK INTO ENGLISH
Oh my brother was a poppin
INTO JAPANESE
ああ私の兄弟はポピンだった
BACK INTO ENGLISH
Oh my brother was popping
INTO JAPANESE
ああ私の弟を炊いていた
BACK INTO ENGLISH
Oh my brother was popping
That didn't even make that much sense in English.