What does «morón» mean in Spanish?

Earthen mound.
Freshwater fish up to 60 cm long and appreciated meat. Scientific name: Eleotris guavina. Other common names: guabina, moroncillo.

♦ Used in: Puerto Rico
Action of running; corrida.

Examples of use in Spanish: "me pegué un morón para alcanzar el bus".
Not liking to work; lazy, idle, lazy.

♦ Used in: Puerto Rico
P.Rico. Unintelligent or suffering from idiocy.

♦ Used in: Panama