When your printer cartridge lasts an unexpectedly long time after the computer has notified you that it needs to be changed.
My report was 17 pages, even though the ink was low, I was able to get the whole thing...Happy printer hanukah!

Man, that thing has lasted like two weeks! This is the longet printer hanukah I've ever seen.

The store was closed, and the paper was due the next morning. If it wasn't from an unexpected printer hanukah I'd have failed the class.
by Nuggets McGee August 23, 2006
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