to act ineptly or without clear understanding of what one is doing; to blunder; to stumble about; -- sometimes used with around.

walk unsteadily; "The drunk man stumbled about"

The bittern.

To make a hollow or humming noise, like that of a bumblebee; to buzz; to cry as a bittern.

make a mess of, destroy or ruin; "I botched the dinner and we had to eat out"; "the pianist screwed up the difficult passage in the second movement"

to bungle (a task).

speak haltingly; "The speaker faltered when he saw his opponent enter the room"