Christmas special
Me: Can you describe Mrs. Claus in 3 words? Santa: Ho ho ho.
Santa's Description of Mrs. Claus
Explanation
The humor comes from Santa's response. Instead of describing Mrs. Claus, he just says his trademark 'ho ho ho', as if that's all he knows or cares to say about her. It's funny because it's unexpected and dismissive, and it plays on Santa's well-known catchphrase.