(figuratively) Trying to achieve a particular task, often with difficulty.
(figuratively) Lost.
(figuratively) Having lost one's mind; insane.
Used other than figuratively or idiomatically: see over, the, river, and, through, the, woods.
Source: en.wiktionary.orgHazel squinted. "How far?" "Just over the river and through the woods." Percy raised an eyebrow. "Seriously? To Grandmother's house we go?" Frank cleared his throat. "Yeah, anyway. Rick Riordan