Peanuts by Charles Schulz for August 24, 1965
August 23, 1965
August 25, 1965
Transcript:
Linus swings the bat and says to Charlie Brown, "I'm going to try for a home run, Charlie Brown!"<BR><BR> Linus says, "Either we win or we lose! All or nothing! Charlie Brown raises a fist and says, "That's the spirit! Go for broke!"<BR><BR> Linus walks off and shouts, "Sydney or the Bush!"<BR><BR> Charlie Brown says, "'Sydney or the Bush'?"<BR><BR>
As this is a little before my time, I had to resort to Wikipedia to figure this one out.
It says, "Another related term used in Australia is “Sydney or the bush”, which equates with such terms as “Hollywood or bust” to mean staking total success or failure on one high-risk event. This usage appears in several Peanuts cartoons, causing Charlie Brown much confusion."
It has done the same or modern readers.