Since Steven Boozer never did this one, and no one else has chimed in, here's the pun: *rutneD* backwards is "denture", because the /Klingon/ word *Ho'*, which sounds like "hoe", means "tooth".
>Date: Tue, 2 Sep 2025 14:00:11 +0000
>Subject: [tlhIngan Hol] Klingon Word of the Day: rutneD (noun)
>
>Content-Type: text/plain; charset=iso-8859-1
>
>Klingon Word of the Day for Tuesday, September 02, 2025
>
>Klingon word: rutneD
>Part of speech: noun
>Definition: hoe
>Source: qepHom 2023