Shake a leg (or maybe better not)

This term has different meanings in the western and eastern cultures.

In the Asian culture, shaking your leg will make your money and/or luck go away.

In the western culture (I think it's mostly in the American sub-culture) it has the same meaning as "break a leg" or simply "good luck!".

I imagine that shaking one's leg would cause your clothes to shake and for your money to fall out (especially when you're a farm worker in the old days in china) and that might explain the Asian source of this expression.

As for the western one - shaking one's leg meant moving about and being busy with something productive - hence one's making his own luck and money.

Me? I'm trying to shake off that habit :)