A difficult phrase to explain to a little french kid in a park in Grenoble when you don't know that much french. I ended up doing a handstand and still he just laughed. it's possible that he understood me the whole time, but it was funnny anyway.
For those that don't know, upside-down is when that part which should be at the top (the upside) is at the bottom (down). Kind of like inside-out, but easier to demonstrate!