It's more like one partner knows the word and has been repeatedly screaming it for the past 60+ years but the other partner refuses to stop because they care more about their short term gratification than any consequences of their actions.
It's not even a reference though, it's just using a word for a classification of an animal that is doubted to exist, like Bigfoot or the Loch Ness Monster.
There's always money in the
banana standCayman Islands