Imaginación calenturienta

[Johndiv23]

Feverish like delusions and hallucinations perhaps. In my opinion fevered imagination is like a person thinking of his/her greatest fantasies.

[chileno]

Feverish like delusions and hallucinations perhaps. In my opinion fevered imagination is like a person thinking of his/her greatest fantasies.

Which can be positive or negative.

I say this, because most of the time "fantasy" is associated with something nice, in this context.

[powerchisper]

In Spain , this will be understood as "someone who is always thinking of sex" ,

Maybe a "Horny imagination" is ok for an English transation ??

[Rusty]

'Lustful imagination' could be one way to say it in English.

Fantasies, like Chileno said, can be good (the kind that children have, and some adults :)), but the majority of the time the word is tied to lustful thoughts.

[AngelicaDeAlquezar]

In Mexico, lust is not necessarily involved, and it's used the way Alec has described it. :)

[poli]

In Spain , this will be understood as "someone who is always thinking of sex" ,

Maybe a "Horny imagination" is ok for an English transation ??
You can say that. You can also say a horn dog.