Break One's Duck Meaning

(idiomatic, Britain, by extension) To do something for the first time.

Example: 2011 January 5, Saj Chowdhury, “Newcastle 0 - 0 West Ham”[1], BBC:
  Best had come on as a substitute in the 1-0 win at Wigan last weekend and wasted a goalscoring opportunity after stumbling as he was about to shoot, so many of the fans in black and white could have been forgiven for thinking that perhaps the burly forward was destined not to break his duck.