I've always assumed we were using definition 4b: "Derived from by a loss of water".

And to your point, Stuart - I've never liked the whole idea of music videos. Sure there have been some entertaining ones over the years, but I do find them to be generally a distraction from the music. The only ones I consistently like are those that simply show the band playing the song.

By the way - very nice little Freudian slip there, Brian.