a hock-cock-sandwich is when your traveling out of town and stop at a little shithole deli to get a sandwich and some drink
and the rednecks see your faggity mazda parked outside and assume your a bitch ass yankee and then hock a loogy in your sandwich then pass it down the line and peform numerous jizzing and spitting actions onto it they may even suck eachother off and then spit the cum onto it