The act of doing a line of coke which has been laid out on yo dick. She snorts da line up yo shaft and then goes down to suck yo dick while getting a nice gummer at the same time.
"Ey if she hurtin for the blow that bad she gotta do a runway for dat shit"
"If she can't pay, she gotta do a runway"
"runways to BJs, thas how we do"