Answer: una metáfora sinestésica.
Translation: A synesthetic metaphor.
Explanation: A synesthetic metaphor attributes sensitive adjective qualities to an object that is perceived by different senses, thus mixing and confusing without logical, sensations of different types. A caress is perceived as a tactile sensation, but has an adjective as if it were perceived with the sense of taste when defining it as salty.
[tex]\textit{\textbf{Spymore}}[/tex]