Just another of those bizarre things you see from time to time, not a cultural thing or current trend of any kind that i'm aware of. I saw a grey-haired old guy (looked about 60) half-squatting by the road once off the bus and as I watched, out of the blue he suddenly performed two, very fast, backward hand-flips. Absolutely B-zar.

I think he was trying out the whip to buy one or just practice. It's a new trend in marriage, don't worry it's not kinky.

Happens all the time where I am. They are usually whipping a wooden or metal spinning top to keep it going. Sometimes it is just a whip though.

When I first came here in '08 it took me six months to figure out what the cracking noise was outside my flat every morning at six.

yea there is a "sport" try to let something spin and they use the whip for that

White people used to whip en masse, so eventually Chinese people try to copy everything they do.