What does the “N” in “Frank-N-Furter” stand for?

special-guest-villain:

According to the original Australian 70′s run of the show, Frank’s full name is Francis Norman Furter. 

This was adlibbed by Riff Raff’s actor Sal Sharah when he’s about to blast Frank with the anti-matter beam (”And now Frank-N-Furter, your time has come!”), it was such a hit with the audience it was added to subsequent performances. 

Hey, it’s canon for me!