What single word, if spoken, instantly marks a person as someone who does not understand crypto at all

So many common people don't understand crypto.

Sometimes overhearing conversation from these people can be very entertaining. They have no clue about crypto and sometimes it feels like they make up nonsense assumptions just to have a discussion.

So this time, I've overheard while traveling on train, an older couple talking about "doggy" coin. Those "doggy" coins are gold coins which have a dog face printed on it and those young people on the internet order them...this is what the old couple talk about. This conversation finishes with a statement that this "doggy" coin is used for shady business.

They weren't talking about some new memecoin, they were refering to DOGE coin, but they clearly dunno what it is.

For me "doggy" was the keyword which marks those 2 as complete clueless crypto haters.