Perhaps it was the hangover talking or a result of the confidence gained from belting England 5-0, or maybe a combination of the two, but Australia are talking a big game before taking on world No.1 South Africa next month.
Basking in the afterglow of an Ashes success as glorious as it was unexpected, Australia have warned the Proteas to brace for a repeat of the sledging that saw tempers threaten to boil over during the Ashes. And they have provided further motivation for South Africa's pace artillery with Peter Siddle the latest in the camp to suggest Australia's attack had knocked them off as the world's best bowling line-up.
The consistency we've had against England here throughout a five-Test series, no one's done it as successful as we have.
Just two days after Michael Clarke's men settled their differences with the vanquished English over a few quiet beers in the SCG dressing rooms, David Warner started baiting Australia's next opponents. ''On the field you don't cross that line,'' he said.
Fighting talk: Peter Siddle signs autographs at the Opera House on Tuesday. The fast bowler said Australia's pace attack was the best in world cricket. Photo: Dallas Kilponen
''We nudged that line a couple of times but I think we really got into their heads. Especially with Johno [Mitchell Johnson] and the pressure of the other bowlers up the other end to allow Mitchell to come out and fire like that is awesome and we need to do that. We need to do that to the South African guys. We know a couple of their blokes are probably on the back foot. I know our bowlers are ready to go over there and give it to them.''
They are yet to bite across the Indian Ocean but there can be no escaping how bullish Australia have become since rediscovering their aggression. Even the vaunted trio of Dale Steyn, Vernon Philander and Morne Morkel, regarded by many as having been the world's premier pace combination in recent years, have not been spared.
First it was pace bowling coach Craig McDermott, then Clarke earlier this week and now it is Siddle's turn to inform the Proteas of the new world order as seen from Australia.
The gang's all here: The victorious Australian team pose for photos at a gala reception outside the Opera House on Tuesday Photo: Dallas Kilponen
Siddle views the attack he has been an integral part of for several years as now being the world's best. Whether it was Johnson's express pace, Ryan Harris' skill, Siddle's consistency or Nathan Lyon's spin, England's batsmen could find no answer.
''When we're bowling at our consistent best, like we did through this series, it shows,'' Siddle said. ''The way we've worked together at different stages and being able to break partnerships, I don't think we've let any partnership get too big on us. We've been able to break them and get stuck into the rest. I think that's what's caused all the collapses, that's what we look to do over there.
''The consistency we've had against England here throughout a five-Test series, no one's done it as successful as we have. To be able to do that, win 5-0 quite convincingly, it shows how strong we are at the moment.''
With their Ashes celebrations over, Clarke said Australia would start preparing on Wednesday for the five-game one-day international series against England, which starts on Sunday.
''We found in the UK after losing 3-0 to England, that [one-day series] was our opportunity as a team to try and turn things around,'' he said. ''And we did that and had success there. But we don't want England to have that same success. The one-dayers are crucial for us, then we head to South Africa for an exciting series.''