Te tenía por una millonetis

[jasminasul]

El contexto es un hombre que está haciendo una colecta en un pueblo de España para ayudar a una muchacha.

DIANA: Te tenía por un hombre inteligente.

DIANA: Mira que perder esta oportunidad...

MARIO: ¿Quieres echar un billetito para la causa?

MARIO: Te tenía por una millonetis.

El señor tiene unos 60 años, pero no sé si será un término moderno, yo no lo había oído nunca.
Se me ocurre in the gravy, on easy street. ¿Alguna otra opción en BrEn?

 

[Marsianitoh]

El contexto es un hombre que está haciendo una colecta en un pueblo de España para ayudar a una muchacha.

DIANA: Te tenía por un hombre inteligente.

DIANA: Mira que perder esta oportunidad...

MARIO: ¿Quieres echar un billetito para la causa?

MARIO: Te tenía por una millonetis.

El señor tiene unos 60 años, pero no sé si será un término moderno, yo no lo había oído nunca.
Se me ocurre in the gravy, on easy street. ¿Alguna otra opción en BrEn?

No, "millonetis" no es moderno, todo lo contrario, una forma anticuada de hablar de alguien con mucha pasta, un millonario. millonetis | Diccionario de la lengua española. Se me ocurre " I thought you were rolling in dough/ money".

 

[jasminasul]

Perfecto, quizá para un subtítulo, rolling in it.
Muchas gracias, Marsianitoh.

 

[Ferrol]

Stinking rich😊

 

[jasminasul]

Quería algo como a Croesus, pero más slangy. O a swell, pero no es exactamente lo mismo. Ni deep pockets.
Creo que se quedará como rolling in it, para mí fluye mejor la frase.
Gracias, Ferrol.

 

[Tiger's Eye]

Pero en el contexto "Te tenía por una millonetis," ¿no hace falta encontrar un sustantivo que te sirve más bien que un adjectivo?
I took you for a moneybags (or Ms. Moneybags).
I took you for a fat cat.

 

[jasminasul]

Sí, eso era lo que quería.
Fat cat lo descarté porque suele tener connotaciones políticas, pero moneybags sí me viene bien.
Muchas gracias, Tiger.

 

[Masood]

Se me ocurre in the gravy, on easy street. ¿Alguna otra opción en BrEn?El señor tiene unos 60 años, pero no sé si será un término moderno, yo no lo había oído nunca.

Those suggestions don't work in BrEn.
Perhaps "I thought you were loaded."

 

[elroy]

I had pegged you as filthy rich.

rolling in dough

I only know this as “rolling in the dough.” I’ve never heard “rolling in money” or “rolling in it” in this meaning.

 

[Marsianitoh]

be rolling in money/dough/cash/it | meaning of be rolling in money/dough/cash/it in Longman Dictionary of Contemporary English | LDOCE
Definition of ROLLING IN (SOMETHING).

 

[elroy]

I was only reporting my own experience. I didn’t say those other versions didn’t exist.

 

[Masood]

I had pegged you as filthy rich.


I only know this as “rolling in the dough.” I’ve never heard “rolling in money” or “rolling in it” in this meaning.

Your suggestions are valid - but they don't work in British English, as required by the OP.

 

[analeeh]

What is it you don't think works in BrE? Maybe I'm over-Americanised, but both 'filthy rich' and 'peg someone as' sound fairly normal to me (though I'd probably say 'I had you pegged as...')

 

[SuperScuffer]

What is it you don't think works in BrE? Maybe I'm over-Americanised, but both 'filthy rich' and 'peg someone as' sound fairly normal to me (though I'd probably say 'I had you pegged as...')

"I had you pegged as..." sounds a bit odd to me, although perfectly understandable.

Masood's "I thought you were loaded." is exactly what I would have suggested.

"Rolling in it" also sounds natural to me (but not "rolling in dough".). "Filthy rich" seems more disparaging to me.

In summary "I thought you were loaded." seems perfect.

 

[analeeh]

Agreed that 'I thought you were loaded' works well.

 

[elroy]

Agreed that 'I thought you were loaded' works well.

I think this works in US English as well.

though I'd probably say 'I had you pegged as...'

This does sound better, and is actually closer to the original Spanish.