put an idea into someone’s head—
1. make a person think of smth.:
- They put an idea into my head. How about having an auction at my party?
2. give smb. undesirable or harmful notions:
- My dear old boy, what can have put the idea into your head that Europe is against us?
put ideas into someone’s head —(also: give someone ideas)
1. = put an idea into someone’s head 2:
- If I ever hear you or any of the others trying to put ideas into his head about making easy money, I swear I’ll knock that person’s teeth in.
2. give a person a falsely high opinion of oneself:
- Robert didn’t become a serious painter until that fool of a teacher put ideas into his head.