An exquisite sexual maneuver in which a cheeseburger is violently thrust into another's anal cavity. Said cheeseburger is then devoured whilst performing a nice juicy rim job, hence the RJ.
A pretty good show. It revolves around a quirky highschool kid named R.J. Berger. He loves a hot blonde(Jenny), but a jerkface jock named Max stands in his way. His fat friend who is obsessed with- oh, just go on wikipedia or something.