What does De Nada Chica mean?

The English equivalent of the Spanish phrase 'de nada chica' is the following: [It's] nothing, girl; or No problem, girl; or [You're] welcome, girl. The Word-by-Word translation is the following: 'de' means 'from' or 'of'; 'nada' 'nothing'; 'chica' 'girl'. The phrase may be use, by the speaker in this case, as the equivalent of an answer of 'you're welcome' to the listener having said 'gracias', or 'thank you'.