be on (one's) (own) head(redirected from be on their head)
be on (one's) (own) head
To be something that one is personally responsible or to blame for. You chose to break the law, so it's on your head if you get arrested for it.
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.
be on someone's (own) headbe someone's sole responsibility.
Farlex Partner Idioms Dictionary © Farlex 2017