For The Ages Meaning

(idiomatic) Especially memorable and noteworthy; deserving to endure for a very long time.

Example: 1953 Oct. 28, Westbrook Pegler, "Fair Enough," Palm Beach Post (retrieved 12 Sept 2013):
  The comparison may seem unfair to Churchill now that he is a man for the ages by reason of his glorious bravado when the world, including Hitler, knew that his heart was heavy with dread.
1968 Jan. 23, James J. Kilpatrick, "A Speech For The Evening," Evening Independent (retrieved 12 Sept 2013):
  It wasn't a speech for the ages. It was barely a speech for the evening.
1994 March 14, William A. Henry III, "Theater: Damn Yankees Is Back At Bat," Time (retrieved 12 Sept 2013):
  Centenarian George Abbott's revival with attitude makes a '50s baseball musical one for the ages.
2013 Sept. 6, Jacob Bernstein, "No Sleep for the Wicked," New York Times (retrieved 12 Sept 2013):
  [T]his year’s Fashion Week is turning out to be a weeklong party for the ages, with so many events, hardly anyone can keep them straight.