All One's Life's Worth Meaning

(idiomatic) A momentous matter; a very serious risk; a difficult task or situation.

Example: 1889, Edward L. Wilson, "From Sinai to Shechem," The Century Magazine, vol. 37, p. 208 (Google preview):
  Many of its streets are cavern-like, for they run under the houses. . . . There is no regularity of style about them, and it is all one's life is worth to try to find the way among them without a guide and a torch.
1907, B. M. Bower, The Happy Family, ch. 7:
  "I'm going to take a much-needed nap—and it'll be all your life's worth to let me miss that train!"
1907, George Jean Nathan and Henry Louis Mencken (eds.), The Smart Set: A Magazine of Cleverness, vol. 23, p. 23 (Google snippet view):
  "It's all one's life is worth to board one of these confounded cable-cars."
1912, Acton Davies and Charles Frederic Nirdlinger, The First Lady in the Land, ch. 15:
  "Fancy planting a capitol in this Godforsaken spot. Fairly reeks of ague and alligators and things. 'Tis all one's life's worth to put foot out of doors."
1962, District of Columbia Appropriations, U.S. Government Printing Office, p. 217 (Google snippet view):
  It is particularly bad out in front of the House Office Building between 5 and 7 o'clock in the evening. It is all your life is worth to get a cab then.
2007, Elridge Trott, Gathering at Vantage, ISBN 9781467032292, p. 242 (Google preview):
  "[I]t's about all your life's worth to go out into that blizzard, even for just a few feet."
2013, Anne Hassett, The Sojourn, ISBN 9781466997905, p. 13 (Google preview):
  "I'm afraid you need to wait until the women say you can come in. It would be all your life's worth to go bustin in now."