have a rush of blood to the head

have a (sudden) rush of blood to the head

To have a sudden feeling of excitement or anger that causes one to act in unexpected ways. It must have been a sudden rush of blood to the head that made Gary lash out at Ron, because he's usually so calm.See also: blood, have, head, of, rush

have a rush of blood to the ˈhead

(humorous) because of a strong emotion, suddenly (decide to) do something foolish or dangerous: I don’t really know why I bought that vase. I just had a rush of blood to the head and wrote a cheque.See also: blood, have, head, of, rush