Is it true that if you play the Queen song Another One Bites the Dust backwards, there is a secret message that says 'it's fun to smoke marijuana'?

If you use the following site, you can decide for yourself if the above question is true. The site repeats the 'hidden message' in 'Another one Bites the Dust' and slows it down for clearer understanding. Decide for yourself.

reversespeech.com/music_reversals.htm no longer exists
https://www.youtube.com/watch?v=xj2dJsVpgCY
https://www.youtube.com/watch?v=n6tnksyRygw

It is called Reverse Speech, the phenomenon of hidden backward messages in speech. It initially gained worldwide fame in the early 80s as those strange backward messages in rock and roll. Since that time, research has progressed significantly and it is now known to exist in all forms of human speech. The pioneer and 20 year veteran of this field, Australian David John Oates, describes Reverse Speech as another form of human communication. If human speech is recorded and played backwards, mixed amongst the gibberish at regular intervals can be heard very clear statements. These statements usually appear in short sentence form and are nearly always related to the forward speech. It appears constantly throughout language, so much so in fact, that it is believed to be a natural part of our speech processes.

http://reversespeech.com/about/