Liz is one of my favorites
That joke is told by everyone. Everyone they meet tells them a joke about their name. Everyone believes that they were the first to think of oh, you’re Frank? I’m straightforward, and it’s a pleasure to meet you. Ha ha ha ha ha laugh ha What a unique idea.
However, Liz is not one of them. Liz appears to be a stand-up comic. She’s probably heard the lizard joke a million times (though this twist on it must be new), yet she’s still laughing about it.