There's a lump in the carpet in the hallway, no bigger than a quarter, that I only find wtih my bare foot once in a strange while. It's an, "A-ha, I remember you," moment that plays in the back of my mind until I reach my destination. I wonder if there's a name for that kind of thing.

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If anyone has a twenty-syllable compound word for it, it'd be the Germans.
This is true. So says Lichtenwalner, which is only 4 syllables, but you get the idea.