To be alert, ready, or full of energy to act. When someone says 'pilas', it's a warning to pay attention.

To be extremely scared or filled with fear in a situation of danger or surprise. This phrase is very expressive and direct.

A mosquito, an insect that bites and transmits diseases. The arch-nemesis of any summer night in the tropics.

Hard-earned knowledge from real-life experience, street smarts acquired through tough situations. Tener calle means you've lived through enough to understand how things actually work, beyond what any classroom can teach.