give (someone) a big head(redirected from give one a big head)
give (someone) a big head
To cause someone to become arrogant, conceited, or have an exaggeratedly high opinion of him- or herself. Having her book on the bestseller list is giving Samantha a big head. My parents have given John a big head with all the praise they heap on him for his accomplishments.
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.