YSDB - You Suck Dick and Balls
Commonly referred to as a Blow-Job, or an In-and-out procedure.
Guy:That YSDB was great last night...
Girl:You mean "Yelping Says Damn Bitch?"
Guy:No You Sucking Dick and Balls!!!
Girl:Oh, that, yeah I could still talk with it all in my mouth.
Guy:SHHHHH, UrbanDictionary will hear you...