Happen Along Meaning

(intransitive, idiomatic) To arrive by chance; to occur by happenstance.

Example: 1892, Julian Hawthorne, The Golden Fleece, ch. 1:
  "Now, if a rattling good earthquake were to happen along, you might awake in the morning to find yourself on an island, or even under water."
1909, L. Frank Baum, The Road to Oz, ch. 11:
  "[W]e can't 'spect a cyclone to happen along and take us to the Emerald City now."
1928, "Science: Heavenly Hubbub," Time, 9 April:
  Novae, or new stars, are always happening along.
2001, Linwood Barclay, Bad Move, ISBN 9780553587043, p. 148:
  "Well, you're the one who's always telling me not to leave my purse in the cart, and that's probably what that woman had done, and someone happened along and just took it."