Buffalo Doorbell 

In impoverished neighborhoods, originating in Buffalo, New York or perpetuated by those influenced by the culture, the practice of alerting members of a party of the arrival of a car by sitting outside and blaring one's horn as if the car is screaming for help, until the target comes outside or neighbors beat the crap out of the driver.

Westwick: "That nigga across the street was doin' the Buffalo doorbell at his baby mama"

Olivier: "Did you pop that nigga?"

Westwick: "Like a bag of Orville Redenbacher"

Buffalo Doorbell by Ben_Dustman August 17, 2011