^ I was going to ask the same thing; it's a term
badhat17 has used a few times. The only "bocs" I'm aware of are the RSA "Boks" that play Rugby Union.
IMHO poor tactics by the Poms in the end - they should have batted through to the end to really play mind games with the confidence of the Aussies (and tire them out before the next game in a few days). As it is, the Aussies took the opportunity to come out and prove, at least to themselves, that it wasn't superior batting by the Poms, but moreso a crap pitch that made the real difference*. On that pitch, even a blind man knew that there was no chance the Poms would bowl the Aussies out before stumps.
Had the game been unlimited time wise, I think we'd be playing for another two weeks before we got a result...
*Although we really need to get some bowlers with balls.