Santísimo (en. Most holy)

/sanˈtismo/

Slang Meanings

Used in some contexts to refer to someone who is extremely good or generous.
That grandmother is a most holy one; she always helps others.
Esa abuela es un santísimo, siempre ayuda a los demás.
Term that can be used ironically to refer to someone who thinks of themselves as morally superior.
Don't be so most holy; we all make mistakes.
No te pongas tan santísimo, todos cometemos errores.