“maybe you could translate it”
(from Google) All glorious is the king’s daughter within the palace.
Which is usually translated as “The honor of the princess (Hashem’s daughter / Bas Yisroel)is in the fact that she remains discrete. (its used most often in reference to tznius).
I’d explain my post, but that would kill the joke. Wait till more replies come thru, and it should become more clear.