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3. by guess and by golly

by guess and by golly

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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, golly, guess