have a (sudden) 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
Farlex Dictionary of Idioms.

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
Farlex Partner Idioms Dictionary
See also:
  • have a rush of blood to the head
  • sudden
  • a (sudden) rush of blood (to the head)
  • a rush of blood
  • all of a sudden
  • of a sudden
  • have a wild hair to (do something)
  • get a wild hair to (do something)
  • a/the turn of events
  • melt up