pololo

Any of various beetles, such as Astylus trifasciatus.; boyfriend (partner in a romantic relationship)

“Hay que tener cuidado de que no penetre en la alcoba, especialmente noche, el insecto llamado pololo, pues gusta de introducirse en las orejas y puede llegar hasta el cerebro, produciendo entonces la muerte de la persona.” — You have to be careful that the insect called pololo does not penetrate into the bedroom, especially at night, for it likes to stick itself in the ears and can even get into the brain, thus producing the death of the person.

Borrowed from Mapudungun püḻülu (“acting like a fly”).