Well, it happened. I heard my third "tickety-boo" today. And when n = 3, and none of those "n"s is is a relative, and especially when one of them was a CBC pundit, I feel compelled to share.
So, here you go: "Things were going along tickety-boo when all hell broke loose."
I have never heard it used when it wasn't followed by the sense of "but I was mistaken" or "but that didn't last long."
As in, the economy was chugging along tickety-boo until the housing market collapsed. Or I was running all my errands, tickety-boo, and then I got slowed by road construction.
A brief Google search reveals that it may be Scottish, and that's likely how it came into Canada.
It also revealed the following earworm, with which I leave you:
It is, after all, a peaches-and-creamy day, on which one wants to bless mankind, including one's attackers.
