It means "i dont know who you are"
'Que o nada quien eres o si se puede saber' translates from Spanish to English as...
Well who you are is Bien quien eres in Spanish.
Quien eres babi translated from Spanish to English is "Who are you babi". !
Quien eres is a Spanish phrase meaning 'who are.'
Your phrase "Si quien eres " is Spanish and means "Where who you are". Another...