What does a green light hit mean in nhl?

Why do you have to wear a jockstrap under your baseball pants? How many years did Shaquille O'Neal play with mimi heat? What are the San Francisco Giants' 2012 at-bat songs? When was the lowest attendance game for the Oakland a's? Which teams did Denise rodman win a championship with? Did magic Johnson return to the NBA? When can you fake a free throw? What city has 5 vowels in its name? Can they blackout NBA playoff games on TNT? What years did Drew Bledsoe play for the Patriots? How many Divisions in basketball? How did Alan Hansen get his scar? What is the best high impact glove? What position does Marc-Andre Fleury play? In rugby what does bokke mean? Is messi a freemason? How tall is Jack tatum? What happens to green bay stock if you die? How many players on a baseball team during playoffs? Why are pitchers usually bad batters?