"Belgium" is a swear word from the Hitch-Hiker's Guide to the Galaxy.
Of the word it explains that "The concept it embodies is so revolting that the publication or broadcast of the word is utterly forbidden in all parts of the galaxy, except one, where they don't know what it means."
However, it never gets around to explaining exactly what this utterly revolting concept is, exactly.
SO, anyways, I thought it'd be sort of fun to see who could all come up with definitions for the word. Anybody? Anybody?