Generate random word combinations from a linefeed-separated list words.txt
like
e.g. from https://codeberg.org/davidak/wortliste
$ ./xkcd936
Kartoffelkäferbefall-Altersteilzeitregelung-auseinanderbersten-Gezücht
If that sounds odd, see https://xkcd.com/936/
Caution: this approach has a statistical bias toward longer words but avoids to actually read the wordlist (O(1), sic!), so it may be as big as you like.