GR translation: dodderer and ass

[Bekah]

Probably Pirate feels like an old man (dodderer)  making a fool of himself (ass).  

Bekah

On Dec 15, 2011, at 3:54 AM, Mike Jing wrote:

> P35.39-P36.6   There’s Mexico’s girl, just entering the room. He spots
> her immediately, the clarity around her, the absence of smoke and
> noise . . . is he seeing auras now? She catches sight of Roger and
> smiles, her eyes enormous . . . dark-lashed, no make-up or none Pirate
> can see, her hair worn in a roll down to the shoulders— what the
> hell’s she doing in a mixed AA battery? She ought to be in a NAAFI
> canteen, filling coffee cups. He is suddenly, dodderer and ass, taken
> by an ache in his skin, a simple love for them both that asks nothing
> but their safety, and that he’ll always manage to describe as
> something else—”concern,” you know, “fondness. . . .”
> 
> What is "dodderer and ass"?