No, it's not a female version of Yogi Bear.
As explained in Wikipedia, Yoga refers to traditional physical and mental disciplines originating in India. Today, I got a chance to stretch and bend to some Yogic postures. I gotta tell you, it's not as easy as it seems.
To my surprise, I actually sweated quite a bit. That was a good thing as I was only in my office attire. Breathing is the most important part of Yoga (I think!?) coz the instructor kept stressing to inhale and exhale and to feel the belly growing and shrinking as we breathe.
It was a fun experience, but I'd rather run than be doing Yoga. You guys should give it a try. See how you like it. Don't worry, there aren't any chanting or worshiping involved.