fly by the seat of (one's) pants

fly by the seat of (one's) pants

To rely on one's instinct, as opposed to acting according to a set plan. I really don't know how to operate this thing, I'm just flying by the seat of my pants here. You can't just fly by the seat of your pants, Jenna—please give your future some serious thought.
See also: by, fly, of, pant, seat
Farlex Dictionary of Idioms.

fly by the seat of your pants

INFORMAL
If you fly by the seat of your pants, you use your judgment and intelligence to do something that you have never done before, in a way that is risky, because you have no experience or training to rely on. `In the first year of trading we knew nothing and were flying by the seat of our pants,' Petti said. The truth is that all new parents fly by the seat of their pants and try to learn quickly from experience. Note: You can also use seat-of-the-pants before a noun. It had always been a seat-of-the-pants type of organization.
See also: by, fly, of, pant, seat
Collins COBUILD Idioms Dictionary, 3rd ed.
See also:
  • fly by the seat of your pants
  • at (one's) doorstep
  • at doorstep
  • at the end of (one's) fingertips
  • (one's) jig is up
  • at (one's) door
  • at door
  • at one's door
  • at someone's expense
  • at (one's) expense