"White Horse" was an anti-drug abuse themed track about people who were lured into the drug culture/lifestyle ("White Horse" was another word for cocaine) that was commonplace in the 1980s, with its famous lyrics, "If you want to ride...don't ride the white horse", and, "If you want to be rich, you've got to be a bitch". The latter part of the track that used the word "bitch" was edited out when it was played on the radio in the 1980s, but can now be heard uncensored today.

http://en.wikipedia.org/wiki/Laid_Back