That's right. Your non exercising beer drinking witch. Do I add big boobs to that picture now?
Apparently the people you're calling crossfit buffs are new or don't know what the fuck they're doing (probably both)...
http://www.youtube.com/watch?v=np2UpsPF9k8 - first thing i found on youtube when i typed "crossfit burpee"
Maybe you should do your own research instead of relying on your small circle of incompetent friends.