This phrase is used in Colombia, specifically in the region of Antioquia. It literally translates to 'termites getting to the piano', but metaphorically it means to lose one's skill or ability, especially in relation to musical instruments. It is often used to describe someone who has not practiced a skill for a while and is therefore not as good as they once were.
Examples
- Spanish: He dejado de practicar guitarra por tanto tiempo que me está cayendo comején al piano.
- English: I've stopped practicing guitar for so long that I am losing my touch.