brancy
A portmanteau of the words "brat" and "Nancy", as these words quite often co-occur in regular usage anyway
Dude 1: Yo I heard you dating that fine-ass girl Nancy!
Dude 2: Yeah, she's got a fine ass but she's a bit of a Brancy, tbh
Dude 2: Yeah, she's got a fine ass but she's a bit of a Brancy, tbh