The phrase in question is a greeting, directed specifically towards individuals of African descent. Its function is to acknowledge and connect with people based on their shared racial identity. It operates as a form of recognition and, potentially, solidarity within the Black community.
The use of such a greeting can foster a sense of belonging and cultural affirmation. Historically, expressions of racial identity have been important tools for marginalized groups to build community and assert their presence. This type of greeting can be a way to combat feelings of isolation and invisibility that may arise from systemic racism or lack of representation. The intentionality behind it communicates a message of respect and acknowledgment of shared experiences.