let (one) have (one's) head(redirected from letting them have their head)
let (one) have (one's) head
To let one do as one wishes; to grant one more freedom. I'm so glad my parents let me have my head—now, I can finally stay out until midnight on the weekends! I'm letting you have your head on this project, and I hope to see some real innovation with it.
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.