Not commonly, maybe, but -- "fwa" is part of "awful" spelled backwards . . . also part of "halfway."I'm most proud of this line: "While the bumox skip across the fwa", because of the word "fwa". Not only is it a made-up word, it also contains a combination of letters that you don't really find in English.
I don't get much fun out of nonsense words . . . a girlfriend of mine used to like to call me a "stick in the mud."
Still, nice job. You have indeed taken a mundane verse and enlivened it with fantasy.