1. To lack
common sense, brain cells or knowledge of the
simple things an individual should know.
2. The act of not knowing something.
3. Behaving immaturely or childish.
4. Lack of careness towards things.
e.g.
Jack lacks brain cells, he is a stupido.
e.g. Eddy is a stupido because he doesn't know what stupido means.
e.g. Like a stupido,
Jack is knocking his head with a hammer.
e.g. Eddy doesn't care that the
house he built has broken down.