stop bitchin or stop being a girl; equivalent to when a girl has her period and has mood swings. When this happens, I believe their "flow" gets heavier. When ever someone acts like a girl on their period, you gotta let them know...
Homie: Yo son! This paper cut hurt like hell! Im bout to cry!
Son: Nigga man up and stop drippin!
Son: Yo! Can you go out with us tonight?
Homie: I don't know son, my moms is drippin right now!