Jollies

When I was a kid, we used to say that someone was getting their "jollies" if they enjoyed something a little too much. There was a sexual connotation to it, of course, as if you were getting off on a cheeseburger or an Atari game.

Now, it just sounds stupid to me. Where did we get that phraseology from? It sounds like something older people might say, and yet there we were, 11 years old, accusing you of "getting your jollies" if you liked that Madonna song a little much.