by guess and by golly

by guess and by golly

By any means; without careful planning; relying on guesswork and luck. We don't have much to work with, but by guess and by golly, we're going to figure out a way to save our business! He just throws his essays together by guess and by golly, but he still manages to get good grades on them.
See also: and, by, golly, guess
Farlex Dictionary of Idioms.
See also:
  • by guess or by golly
  • golly
  • by guess or by gosh
  • by guess and by God
  • by guess and by gosh
  • go it blind
  • as chance/luck would have it
  • as luck would have it
  • bluff (one's) way through (something)
  • with any luck