Might be a dumb thing to post on hacker news, but I tried using the word boid or boids in Scrabble and my competitive wife wouldn't let me because it wasn't in the dictionary. It fit so well too!
Long before the flocking model, “boid” referred to snakes of the Boidae family, like boas and anacondas.
https://scrabble.merriam.com/finder/boid (for the USA and Canada)
https://www.collinsdictionary.com/scrabble/ (for English in the rest of the world)
For example, according to Wiktionary, boid (and its plural) should be permitted under etymology two, ie. member of the family Boidae of non-venomous snakes or etymology three, ie. Nonstandard spelling of bird representing the New York City pronunciation. We would not permit it under etymology one (computer program name). Now look - you learned something! https://en.wiktionary.org/wiki/boid#English