Pharisees Puns

Basically we somehow got on the topic of hipsters and irony. My Dad wanted to make a sort of pun to annoy my sister, because she hates puns.

Now I figure most people would make some sort of reference to an iron "e", and that would be it. But oh no, that's far too simple for him. He says something along the lines of,

"If they're ironic (or defined by irony), doesn't that make them Pharisees?"

So you've got to know that "Ferrous" refers to iron, and then to have some basic knowledge of the New Testament or at least have heard of the Pharisees before. This kind of works on another level because the Pharisees were accused of saying one thing and doing another, which could be said to be ironic to some degree. Of course I've just killed the frog at this point, but I mean if you're ever around some Chemists who have some knowledge of the bible, you might get a slight chuckle, or perhaps even a nod. I'm not really even sure if this qualifies as a Dad joke, but there ya go.