take it into your head to do something

take it into (one's) head (to do something)

To decide or become set on the idea to do something, often something capricious. Jane has taken it into her head to become a glassblower, and she's already ordered all the tools.
See also: head, take
Farlex Dictionary of Idioms.

take it into your head to do something

decide impetuously to do something.
1991 Ben Okri The Famished Road Fearing that the supervisor might notice me as well and take it into his head to order me to break my neck carrying cement bags, I hurried on.
See also: head, something, take
Farlex Partner Idioms Dictionary

take it into your head to do something

suddenly decide to do something: She’s taken it into her head to give all her books away.
See also: head, something, take
Farlex Partner Idioms Dictionary
See also:
  • get tired of (something)
  • open (one's) mind (to something)
  • open mind
  • open your mind to
  • flatten out
  • become hip to (someone or something)
  • ice up
  • mist over
  • addict
  • addict (one) to (something)