I've never heard that term before.

I'm also puzzled by your "1 1/12 days" (I assume you meant) "1 and 1/2 days") wait, which a moment later you say was 18 hours (one and a half days would be 36 hours). Did I miss something?

Is this just a poorly-written letter, with perhaps some extenuating circumstances that aren't clear? Or are you really complaining about weather delays?