the tag for posting youtube links is "noembed" and "/noembed" - - except in brackets [ ]
though just posting the link anyway, even though embedding is disabled, will work ok, since all you then have to do is tell people to click on the player and it will open the page the video is on.
btw- saw this recently. I love Natalie's potty mouth hehehe
http://www.youtube.com/v/KpMPFGBtE7Q