"Roo Roo" Can best be explained by this joke:
An airplane crash lands in the jungle, and the three survivors are knocked unconscious and taken to the jungle's tribal chief.
When they awaken they are standing in front of a group of tribesmen, and the chief says as punishment for tresspassing in their sacred lands they are given a choice, and after the punishment is dealt they will be free to go.
The first man is led off away from the other two guys, and is asked between the choice, of "Roo Roo or death". The first man picks Roo Roo, since he knows he doesn't want to die. His pants are pulled off and they bend him down and shove a stick a few inches around, wrapped in dirty rusty barbed wire up his ass a few times. He yells in pain, and the other two guys hear faint screams of pain. After a few minutes of pain and bleeding he is led back to the group, walking ever so slowly and still wincing everytime he take a step.
The second man is led away from the group, and is asked the same choice, "Roo Roo or Death" and he picks Roo Roo once again, since he knows that even Roo Roo is better than death. And now the second man is led away, just as the first guy, they do the Roo Roo deed and faint screams are heard by the two remaining men. When the second guy comes back he talks to the third guy.
The third and final man is led away from the group and gets the same choice as before, "Roo Roo or Death", and defying tradition he picks death. They tear off his pants and the tribal chief announces "So be it, DEATH BY ROO ROO."
That is the Roo Roo Joke.
-Jesse