This phrase is used when someone is acting or behaving as if they are more important or superior than they really are. It refers to a person who is full of themselves or has a high opinion of their self-worth.
Examples
- Spanish: No le hagas caso a Juan, ese tiene ínfulas de grandeza y piensa que todos deben hacer lo que él dice.
- English: Don't pay attention to Juan, he has delusions of grandeur and thinks everyone should do what he says.