turn one's head

1

Cause to become infatuated, as in The new teacher turned all the girls' heads. [Mid-1800s]

2

Cause to become conceited, as in Winning that prize has turned his head. A 16th-century translator of Seneca used this phrase: “His head was turned by too great success” (Ad Lucullus, 1571).

The American Heritage® Idioms Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.