Road “O” 

Similar to “road head,” but in this case, the driver gives the passenger a handy/orgasm.

Driver to passenger: “Babe, you down for a Road “O” ?

Road “O” by PantsCoar353 May 18, 2018

B&O Rail Road 

Another way of saying Black 'n Out.

I'm trying to conduct the B&O rail road tonight. WOO WOO

Damn carl, you must of had one crazy ride on the B&O rail road last night.

B&O Rail Road by Party-Tron August 26, 2009