Chiflado (en. Crackpot)
/tʃiˈflaðo/
Slang Meanings
It is used to refer to someone who has strange quirks.
That weirdo can't leave the house without his tinfoil hat.
Ese chiflado no puede salir de casa sin su sombrero de papel aluminio.
It refers to a very enthusiastic fan of something, sometimes in an exaggerated manner.
He's a soccer fanatic, he never misses a game.
Es un chiflado del fútbol, no se pierde ningún partido.