Holla back girl

[Tina]

A girl that is willing to be treated like a doormat or booty call. She is a girl that will allow guys to do whatever they want with her and will just wait for them to holla back at them.

[Dave Paprocki]

NOUN: A girl that is willing to be treated like a doormat or booty call. She is a girl that will allow guys to do whatever they want with her and will just wait for them to holla back at them.
VERB: a member of a cheerleading squad who repeats – hollers back - words that the squad leader shouts out to them.

[Sarah]

a follower. Originally, a holla back girl was a member of a cheerleading squad who repeats – hollers back - words that the squad leader shouts out to them. Now, it means a girl doesnt stand up for herself, allowing guys to do whatever they want with her and she follows them, holla back at them.
In the Gwen Stefani song, she uses the cheerleading terminology as a metaphor, she’s a leader