bet one's life

English

bet one's life (third-person singular simple present bets one's life, present participle betting one's life, simple past and past participle bet one's life)

Synonym of bet one's bottom dollar
- 1979, Roald Dahl, The Twits:
  You can play a lot of tricks with a glass eye because you can take it out and pop it back in again any time you like. You can bet your life Mrs Twit knew all the tricks.
- 1918, Edith Wharton, chapter IX, in The Marne, New York, N.Y.: D[aniel] Appleton and Company, →OCLC, pages 87–88:
  But whenever one of the motor-trucks lumbering by bore a big U.S. on its rear panel Troy pushed his light ambulance ahead and skimmed past, just for the joy of seeing the fresh young heads rising pyramid-wise about the sides of the lorry, hearing the snatches of familiar songs—"Hail, hail, the gang's all here!" and "We won't come back till it's over over here!"—and shouting back in reply to a stentorian "Hi, kid, beat it!", "Bet your life I will, old man!"