My best guess is where you breathe "ultra" fucken tiny silica bits from a volcano.
wait, so they're going to coat everything with volcanoes?
No. The spray can will just be shaped like a volcano.
So is this the beginning influx of reddit jokes on HN?
No.
I didn't actually intend it to be a stupid joke; I was actually trying to parse the word, and then it turned out I was in the middle of a redditesque joke thread. But, no, I doubt it, especially given the number of downmods.