At that moment I finally understood the expression, for I felt a nebulous idea suddenly become a vivid truth.
As often as not he began writing with only a nebulous idea of what he proposed to do.
Perhaps I did wrong to ask you here; for, after all, I have only misty suspicions and nebulous ideas to go on.
Mackie is devoted to straight-talking, which is perhaps why "this nebulous idea of celebrity" and getting lost in it is so alarming to him.
It's one of his rather nebulous ideas.
I'd guess there might be some nebulous ideas we could play around with.
One way in which the college game differs from the pro game is this nebulous idea, repeated by fans and college administrators again and again, called "class."
Rather nebulous ideas of the three services were exchanged, but they did not get very far.
The key is to remember that to them everything is politics, and politics, remember, is all about nebulous ideas, aesthetics.
It seems to be this sort of nebulous idea that means different things to different people.