He is making a mistake because he is thinking with his little head.
think with one's little head
idiomTo make decisions or act based on one's sexual impulses rather than based on clear reasoning.
Everyone warned him that the relationship was a bad idea, but he was clearly thinking with his little head.
Instead of considering the long-term consequences of his actions, he allowed himself to think with his little head, ultimately jeopardizing his professional reputation.
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a little bird told me
I received the information from a source which I am not prepared to disclose.
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a little bit of bread and no cheese
Used to represent the song of the yellowhammer (Emberiza citrinella).
- 03
a little from column A, a little from column B
A combination of two factors or reasons.
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a little of something goes a long way
Only a small amount of something is usually required to produce a great effect.
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abound in one's own sense
To follow one’s own inclinations and opinions.
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ace up one's sleeve
A surprise advantage of which others are not aware.
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act one's age
To behave in a manner appropriate to one's age.
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act one's age, not one's shoe size
Synonym of act one's age (“to behave in a mature manner; to avoid being childish”).
Last updated July 12, 2026