if you unscramble "Mr. Mojo Risin", you'll get "Jim Morrison"
You also don't have to think that long to find out that he was actually referring to his own cock.
but this is okay, because it's Jim Morrison.
and Jim Morrison's cock was one of the eight wonders of the world.
Got to keep on risin'
Come on risin' risin'
MR MOJO RISIN
This fact was proven by John densmore's book. Riders On The Storm.