I was never distinguished for address, and have often even blundered in making my bow.
Goldsmith.
Yet knows not how to find the uncertain place,
And blunders on, and staggers every pace.
Dryden.
To blunder on. (a) To continue blundering. (b) To find or reach as if by an accident involving more or less stupidity, -- applied to something desirable; as, to blunder on a useful discovery.
Blun"der, v. t. 1. To cause to blunder. [Obs.] "To blunder an adversary." Ditton.