Quote Originally Posted by Blu (Ontario)
I believe the correct expression is "break a leg"!

cheers,
blu
Correct or Toi Toi for Opera. The term "Break a leg" is from when an Actor enters from the wings on stage. The legs are the curtains in the wing that hides the backstage from the audience. To break a leg is to come from the wing onto the stage hence the term.
Cheers
Robert