Bear had to Google that big word.....
so did I, Google came back with the very helpful:
cromulent - Wiktionary
Wiktionary
https://en.wiktionary.org › wiki › cromulent
A humorous, intentionally morphologically opaque neologism and nonce word coined by American television writer David X. Cohen (born 1966) for “Lisa the ...
English · Etymology · Pronunciation · Adjective