A Spo-fan sent me this from the on-line encylcopedia.

In the fictional universe of Babylon 5, spoo is a valuable and highly desired food product. Made from the alien worm-like creatures of the same name, spoo is considered to be the most delicious food in the galaxy, regardless of which species is asked. Although it is a universally loved foodstuff and an actively traded commodity, the creature itself is regarded with contempt by the races that consume it.

Since its introduction on the Babylon 5 television series, spoo has remained popular among fans of the science fiction saga, spawning everything from attempts to cook their own version of spoo, to fan fiction related to the creatures. “Spoo” is also used variously outside the Babylon 5 universe and fan community as a nonsense word.