fly by the seat of (one's) pants

(redirected from fly by the seat of their 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: fly, of, pant, seat