Really Elvis? Really?

While listening to Jailhouse Rock for a post... did I just hear what I thought I heard?

Jailhouse Rock lyrics, verse three:

Number forty-seven said to number three:
You're the cutest jailbird I ever did see.
I sure would be delighted with your company,
Come on and do the jailhouse rock with me.
Lets rock, everybody, lets rock.
Everybody in the whole cell block
Was dancin to the jailhouse rock.

Really Elvis? Really?

Am I the last person on earth to realize that "jailhouse rock" is code for gay prison sex?

That's just plain disturbing. Maybe not as disturbing as my images of Art Garfunkel, but still disturbing.