Jozxyqk is supposedly a word in the language of the felis sapiens.
The Cat revealed this to Dave Lister as the two played scrabble, and the Cat used it as one of his words to win. According to the Cat, it is a genuine Cat word, being "the sound you make when you get your sexual organs trapped in something".
Lister was wary, believing that the Cat may have been making the word up, and therefore cheating. Asking if it was in the dictionary, the Cat replied to Lister that it could be, if you're reading in the nude and close the book too quick. He then demostrated how this word would be pronounced. Lister remained skeptical (Bodyswap, Series III)