Originally posted by nat whilk II
this phrase has I think a little known source (BTW it's break a leg, not brake)
It's an anti-bad luck thing. Performer is about to go on stage, someone says, "You'll do great!!". The performer, a superstitious type says, "Don't say that - you'll jinx me", so the well-wisher says, "OK, break a leg!".
And it caught on, but after a while the original meaning got left behind even 'tho the phrase is still used.
nat whilk ii
hummmmmmmm.....intresting, the way I heard it, and saw it in amovie, i'm sure they said break, making a motion with their hand as when you brake something.....