A Dick Nixon is when someone goes down on a guy. When it is time to shoot the load, you shoot it in their eyes so as to blind them. Then you punch them in the nose in order to knock them out. Once they are unconscious, you steal every thing you can grab from their place and get the hell out. If they ever call you out on what you did you are to reply, "I am not a crook!"
Yo Scott, let's go buy some expensive shit! Mary was giving me a blow job the other day and I totally Dick Nixoned her ass. I made it out with her credit card and panties so we're good to go