In layman's terms, Staj, it means something like: "The string that ties the two cans together broke." : 8) :
Thanx, Staj & Manhattan for your kind words. Now . . . I just happened to think: how old do you have to be to remember tying 2 cans together with a string to make a "telephone" . . . and how many of the young'uns here had no idea what I was talking about?