have a wild hair to (do something)

have a wild hair to (do something)

To have an intense, and typically sudden, enthusiasm or zeal to do something. I don't know why Callie has a wild hair to tie-dye all of the sudden, but I did get a cute shirt out of it, so I can't complain.
See also: hair, have, wild
Farlex Dictionary of Idioms.
See also:
  • get a wild hair to (do something)
  • have a (sudden) rush of blood to the head
  • have a rush of blood to the head
  • of a sudden
  • all of a sudden
  • sudden
  • a (sudden) rush of blood (to the head)
  • a rush of blood
  • merger-mania
  • prime