"The Buck Stops Here"

President Harry S. Truman popularized the phrase during his White House years, from 1945 to 1953. The individual on whose desk the buck rests must take responsibility and not "pass the buck" onto someone else.
The original buck was a marker passed around the table in poker games. It was placed in front of the player whose turn it was to deal and to see that the antes of all players were placed in the pool.