A phrase - borrowed from childish patter (and self-evident in that context) - which I use to lighten tense situations where a technological failure is involved. E.g. when someone is demoing their latest app and it blows up. Although this often backfires, it's usually good for a giggle when someone might just as easily be sweating bullets.

Alas I find myself muttering this a lot when working with java aps under Windows. "Java Chatterbox fall down go boom."