It's more of a description than a suggestion, though in the book it follows directly after the epithet that meowmeow guessed. IIRC, the "rah" attached to a name (or word) attached a "royal" meaning, or at least a Japanese-style honorific. So the translation of "u embleer rah" is "The Stinking Prince" (kinda-sorta).
Goodness - why can't I retain useful things, like where I put my car keys?