My Polish grandparent always misheard things and then repeated back what they thought they heard as an incredulous question (this is the origin of my personal brand of Twitter humor, yes). One day my parents were supposedly making fun of this by mimicking my grandparent but using the word klant for plant, and I, then a foolish child, asked, "Mom? What's a klant?" which everyone but me thought was hilarious.
Thanks to MMaRsu doxxing himself before benji could I now know they were actually talking about selling secrets to customers in the Netherlands. Good con, gotta hand it to them.