One example of this is when a shot hits a leg and bounces onto a player's stick, without him having to move. He then one-times the puck into an empty net.
Another example is when a defenseman with the puck loses his edge and the loose puck is picked up by whichever forward happens to be forechecking. He then proceeds with a breakaway.
This type of goal is not to be confused with the rebound goals scored by players like Ryan Smyth, John Leclair and Dennis Savard where the player earns his glory by fighting with the defenseman to screen the goalie.
Because the player for whom this type of goal is named is so popular, this term could be applied to any sport.
Yea, such a Crosby goal.