in over one's head

in over (one's) head

Too deeply involved in or with a difficult situation, beyond the point of being able to control or cope any longer. I think I'm in over my head with Amy. She wants marriage, kids, and a house, and I'm just not ready for any of that. I've gotten in way over my head with this money laundering scheme—now the mob is threatening my family if I try to back out!
See also: head, over
Farlex Dictionary of Idioms.

in over one's head

see under in deep, def. 2.
See also: head, over
The American Heritage® Dictionary of Idioms by Christine Ammer.
See also:
  • in over (one's) head
  • in over head
  • in over your head
  • be in over (one's) head
  • get in over (one's) head
  • if you can't take the heat, get out of the kitchen
  • If you can’t stand the heat, keep out of the kitchen
  • if you can't stand the heat
  • if you can't stand the heat, get out of the kitchen
  • if you can't stand the heat, keep out of the kitchen