In Chapter Two, what is one of the big reasons Bri wants to really make it as a hip-hop star/rapper?

In Chapter Two, Bri tells Aunt Pooh she is worried about Jay, Bri's mother, because Jay served what Bri calls "popkenchurch" for dinner - a mish-mash of different foods from three different places. Bri knows Jay only serves popkenchurch for dinner when something bad has happened.